NWSLI River Name Proximity Station Name State Name Latitude Longitude AAKA2 Antler River near Auke Bay AK 58.8519 -134.7086 ABLA2 Kobuk River at Ambler AK 67.0869 -157.8475 ACSA2 Susitna River at Alexander Creek AK 61.4167 -150.5931 ALKA2 Alsek River at Yakutat AK 59.3950 -138.0819 ALLA2 Koyukuk River at Allakaket AK 66.5653 -152.6425 ANVA2 Yukon River above Anvik Coop AK 62.6467 -160.1883 APBA2 Anchor River at Anchor Point AK 59.7722 -151.8364 APTA2 Anchor River at New Sterling Hwy AK 59.7472 -151.7531 ARAA2 Anvik River near Anvik AK 62.7894 -160.6969 ATRA2 Atigun River near Wiseman AK 68.2150 -149.4036 BCTA2 Birch Creek near Miller House AK 65.3925 -145.7125 BETA2 Kuskokwim River at Bethel AK 60.7933 -161.7456 BGDA2 Tanana River at Big Delta AK 64.1569 -145.8644 BRIA2 Bradley Lake Inflow at Bradley Lake Inflow AK 59.7600 -150.8397 BRMA2 Middle Fork Bradley River near Homer AK 59.7783 -150.7542 BRRA2 Bradley River near Homer AK 59.7583 -150.8506 BRTA2 Bradley River near Tidewater Near Homer AK 59.8017 -150.8828 BRUA2 Bradley River near Nuka Glacier Near Homer AK 59.7006 -150.7025 BTTA2 Koyukuk River near Bettles AK 66.9261 -151.5086 BVRA2 Yukon River at Beaver AK 66.3592 -147.3911 CCSA2 Campbell Creek near Dimond AK 61.1394 -149.9233 CCVA2 Colville River at Colville Village AK 70.4322 -150.4094 CHAA2 Chatanika River at Elliot Hwy Bridge AK 65.0853 -147.7217 CHFA2 Chena River at Fairbanks AK 64.8458 -147.7011 CHLA2 Little Chena River near Fairbanks AK 64.8861 -147.2472 CHRA2 Chester Creek at Arctic Blvd AK 61.2053 -149.8953 CIRA2 Yukon River at Circle AK 65.8272 -144.0614 CJXA2 Kuskokwim River at Crooked Creek AK 61.8694 -158.1114 CKTA2 Chilkat River at Klukwan AK 59.4156 -135.9325 CLKA2 Chelatna Lake near Chelatna Lake AK 62.4344 -151.4097 COCA2 Cooper Creek near Cooper Landing AK 60.4839 -149.8803 COOA2 Kenai River at Cooper Landing AK 60.4928 -149.8078 CRHA2 Chena River below Hunts Creek AK 64.8600 -146.8033 CRSA2 Chatanika River at Steese Hwy Bridge AK 65.1906 -147.2542 CSRA2 S. F. Campbell Creek at South Fork Campbell Creek AK 61.1489 -149.7294 CTEA2 Crooked Creek at Central AK 65.5725 -144.7775 DSHA2 Deshka River at Near Willow AK 61.7847 -150.3369 DSRA2 Deshka River at Susitna River AK 61.7847 -150.3369 EKLA2 Eklutna Lake near Eklutna AK 61.4108 -149.1222 ENNA2 Tanana River at Nenana AK 64.5653 -149.0917 EOGA2 Eklutna River at Old Glenn Hwy AK 61.4503 -149.3672 ERBA2 Eagle River at Glenn Hwy Bridge AK 61.3103 -149.5769 EXTA2 Exit Glacier Stream near Visitors Center AK 60.1867 -149.6250 FLSA2 Falls Creek near Petersburg AK 56.6822 -132.9222 FMKA2 Walker Fork of the Fortymile River at Taylor Hwy AK 64.0761 -141.6306 FMMA2 Mosquito Fork of Fortymile River at Taylor Hwy AK 64.0661 -141.9972 FMRA2 Fortymile River at Taylor Hwy AK 64.3092 -141.4022 FMSA2 South Fk Of The Fortymile River at Taylor Hwy AK 64.0578 -141.7672 FMWA2 West Fork Of The Fortymile River at Taylor AK 63.8894 -142.2322 GAKA2 Gakona River near Gakona AK 62.3014 -145.3072 GBDA2 Goodpaster River near Big Delta AK 64.4506 -144.9422 GCGA2 Glacier Creek at Girdwood AK 60.9617 -149.1314 GCSA2 Susitna River at Gold Creek AK 62.7678 -149.6911 GLCA2 Glacier Creek near Seward AK 60.1803 -149.3794 GPOA2 Gulkana River at Paxson Lake Outlet AK 62.8583 -145.6167 GROA2 Grouse Creek near Seward AK 60.1983 -149.3733 GRSA2 Gulkana River at Sourdough AK 62.5208 -145.5308 GULA2 Gulkana River near Gulkana AK 62.2689 -145.3806 GYRA2 Yukon River at Galena AK 64.7361 -156.9008 HNRA2 Nenana River at Healy AK 63.8542 -148.9556 HRWA2 Harding River near Wrangell AK 56.2133 -131.6367 ILRA2 Iliamna River near Pedro Bay AK 59.7586 -153.8447 JDCA2 Jordan Creek near Auke Bay AK 58.3664 -134.5761 JORA2 Johnson River near Tuxedni Bay AK 60.0947 -152.9106 KDKA2 Terror River near Kodiak AK 57.6947 -153.1617 KEYA2 Kenai River at Kenai Keys AK 60.4814 -150.6261 KGSA2 King Salmon Creek near King Salmon AK 58.6953 -156.6989 KIAA2 Kobuk River near Kiana AK 66.9736 -160.1308 KRAA2 Kuskokwim River at Aniak AK 61.5872 -159.5483 KRGA2 Kahtaheena River near Gustavus AK 58.4436 -135.6003 KRKA2 Kenai River below Mouth Killey River AK 60.4911 -150.6306 KUPA2 Kuparuk River near Deadhorse AK 70.2831 -148.9608 LIGA2 Lignite Creek near Healy AK 63.9047 -148.9836 LSHA2 Little Susitna River at Houston AK 61.6267 -149.8008 LSOA2 Little Susitna River at Hatcher Pass Bridge AK 61.7097 -149.2319 LSUA2 Little Susitna River below Hatcher Pass Bridge AK 61.7103 -149.2297 MAGA2 Matanuska River near Matanuska Glacier AK 61.7933 -147.7981 MATA2 Matanuska River near Palmer AK 61.6086 -149.0731 MCAA2 Montana Creek at Back Loop Bridge AK 58.3981 -134.6094 MCDA2 Chena River near North Pole AK 64.8008 -147.2278 MCGA2 Kuskokwim River at Mcgrath AK 62.9583 -155.5903 MDBA2 Copper River near Million Dollar Bridge AK 60.6717 -144.7447 MFKA2 Middle Fork of Koyukuk River near Wiseman AK 67.4383 -150.0750 MHSA2 Tanana River at Manley Hot Springs AK 65.0014 -150.6250 MNBA2 Mendenhall River at Back Loop Bridge AK 58.4042 -134.5844 MNDA2 Mendenhall Lake at Mendenhall Lake Level AK 58.4297 -134.5728 MONA2 Montana Creek near Montana AK 62.1053 -150.0575 MOOA2 Moose Creek near Palmer AK 61.6850 -149.0469 MPTA2 Trail River near Lawing AK 60.4331 -149.3739 MXYA2 W.F. Kennicott River near Mccarthy AK 61.4342 -142.9406 NINA2 Ninilchik River at Ninilchik AK 60.0483 -151.6647 NRDA2 Nuyakuk River near Dillingham AK 59.9356 -158.1878 NRNA2 Nation River near Nation AK 65.2397 -141.6528 NSHA2 Nushagak River at Ekwok AK 59.3492 -157.4731 NUIA2 Fish Creek near Nuiqsut AK 70.2706 -151.8692 NULA2 Yukon River at Nulato AK 64.7186 -158.1022 OBRA2 O'Brien Creek near Obrien Creek AK 64.3158 -141.4169 OBUA2 Kobuk River at Kobuk AK 66.9167 -156.8667 PHLA2 Phelan Creek near Paxson AK 63.2408 -145.4675 RBYA2 Yukon River at Ruby AK 64.7425 -155.4842 RESA2 Resurrection River at Exit Glacier Bridge AK 60.1950 -149.5894 RLKA2 Russell Lake near Yakutat AK 59.9178 -139.3822 RSHA2 Yukon River at Russian Mission AK 61.7833 -161.3167 SALA2 Salcha River near Salchaket AK 64.4728 -146.9239 SCCA2 Sinona Creek near Chistochina AK 62.5911 -144.6467 SCKA2 Staney Creek near Klawock AK 55.8014 -133.1086 SGRA2 Sagavanirktok River near Deadhorse AK 69.0150 -148.8172 SHIA2 Ship Creek near Anchorage AK 61.2256 -149.6350 SIXA2 Sixmile Creek near Hope AK 60.8208 -149.4253 SKGA2 Skagway River near Skagway AK 59.4683 -135.3022 SKLA2 Kenai River below Skilak Lake AK 60.4664 -150.6014 SKWA2 Skwentna River at Skwentna AK 61.9619 -151.1669 SMNA2 Salmon Creek at Salmon Creek Road AK 60.1458 -149.4119 SNKA2 Snake River near Nome AK 64.5642 -165.5072 SNOA2 Snow River near Seward AK 60.2864 -149.3386 SRRA2 Resurrection River at Seward Hwy Brg AK 60.1408 -149.4183 SRYA2 Situk River near Yakutat AK 59.5867 -139.4925 STKA2 Stikine River near Wrangell AK 56.7081 -132.1303 SUNA2 Susitna River near Sunshine AK 62.1753 -150.1736 SXRA2 Kenai River at Soldotna AK 60.4767 -151.0822 TAFA2 Tanana River at Fairbanks AK 64.7928 -147.8389 TALA2 Yukon River at Tanana AK 65.1667 -152.0667 TAZA2 Tazlina River near Glennallen AK 62.0547 -145.4278 TKTA2 Talkeetna River at Talkeetna AK 62.3267 -150.1172 TKUA2 Taku River near Juneau AK 58.5386 -133.7006 TONA2 Tonsina River near Tonsina AK 61.6614 -145.1839 TRPA2 Twenty-Mile River near Portage AK 60.8981 -148.9219 TRTA2 Talkeetna River above Rr Bridge AK 62.3469 -150.0169 TSGA2 Tanana River at Tanacross AK 63.3794 -143.3436 TYAA2 Taiya near Skagway AK 59.5119 -135.3444 UCHA2 Chena River near Two Rivers AK 64.9028 -146.3569 URUA2 Unalakleet River near Unalakleet AK 63.9350 -160.3050 URWA2 Unuk River near Wrangell AK 56.2406 -130.8803 WILA2 Willow Creek at Willow AK 61.7667 -150.0667 WLCA2 Wolverine Creek near Moose Pass AK 60.3706 -148.8967 WLWA2 Willow Creek near Canyon AK 61.7808 -149.8844 WMCA2 Wiseman Creek at Wiseman AK 67.4097 -150.1083 WULA2 Wulik River near Kivalina AK 67.8761 -163.6744 YEAA2 Yukon River at Eagle AK 64.7894 -141.3283 YFYA2 Yukon River at Fort Yukon AK 66.5636 -145.2756 YLKA2 Yentna River at Lake Creek AK 61.9003 -150.9181 YPSA2 Yukon River at Pilot Station AK 61.9344 -162.8806 YRBA2 Yukon River near Stevens Village AK 65.8756 -149.7178 ARTA1 Pea River near Ariton AL 31.5947 -85.7831 AVLA1 Tombigbee River at Bevill Lock And Dam AL 33.2103 -88.2886 BCDA1 JB Converse Reservoir at Big Creek Lake AL 30.7125 -88.3344 BCKA1 Mobile River at Barry Steam Plant AL 31.0028 -88.0111 BCNA1 Burnt Corn Creek near Brewton AL 31.1297 -87.0872 BELA1 Choctawhatchee River near Bellwood AL 31.1592 -85.7844 BIGA1 Big Creek at Big Creek AL 31.4889 -86.0531 BLDA1 Black Warrior River at Bankhead Lock And Dam AL 33.4569 -87.3550 BNAA1 Big Nance Creek at Courtland AL 34.6700 -87.3172 BRPF1 Perdido River near Barrineau Park AL 30.6903 -87.4403 BSBA1 Flint River at Brownsboro AL 34.7492 -86.4467 BWMA1 Murder Creek at Brewton AL 31.1008 -87.0689 BWTA1 Conecuh River at Brewton AL 31.0669 -87.0617 CATA1 Catoma Creek near U.S. 331 Highway Bridge AL 32.3072 -86.2994 CCSA1 Coosa River near Logan Martin Dam AL 33.4092 -86.3381 CHGA1 Cahaba River near Cahaba Heights AL 33.4156 -86.7397 CHLA1 Coosa River at Childersburg AL 33.2917 -86.3639 CHSA1 Flint River near Chase AL 34.8228 -86.4831 CKLA1 Cahaba River at Centreville AL 32.9450 -87.1392 CLBA1 Alabama River near Claiborne Dam AL 31.6133 -87.5506 CLDA1 Tombigbee River near Coffeeville Dam AL 31.7583 -88.1292 CREA1 Coosa River at Weiss Dam AL 34.1719 -85.7539 DALA1 Claybank Creek near Daleville AL 31.3056 -85.7439 DECA1 Tennessee River at Decatur AL 34.6114 -86.9753 DLDA1 Tombigbee River at Demopolis Lock and Dam AL 32.5208 -87.8800 EFKA1 East Fork Choctawhatchee River near Abbeville AL 31.4958 -85.3711 ELBA1 Pea River at Elba AL 31.4133 -86.0631 ENSA1 Village Creek at Avenue W AL 33.5175 -86.8792 FLMA1 Big Escambia Creek at Flomaton AL 31.0125 -87.2625 FLOA1 Tennessee River at Florence AL 34.7869 -87.6700 FOLA1 Pea River at Folsom Bridge AL 31.4392 -85.9686 FSHA1 Fish River near Silverhill AL 30.5453 -87.7986 GAPA1 Coosa River at Gadsden AL 34.0139 -85.9703 GNSA1 Tombigbee River at Gainesville Lock and Dam AL 32.8522 -88.1542 GNVA1 Choctawhatchee River at Geneva AL 31.0411 -85.8661 LDBA1 Little Double Bridges Creek near Enterprise AL 31.2722 -85.9583 LOWA1 White Water Creek at Lowry Mill AL 31.5333 -85.9833 LRYA1 Tombigbee River near Leroy AL 31.4858 -87.9089 LVNA1 Sucarnoochee River at Livingston AL 32.5736 -88.1933 MGMA1 Alabama River at Montgomery AL 32.3919 -86.3178 MGYA1 Tallapoosa River at The Tallapoosa Water Plant AL 32.4397 -86.1956 MILA1 Tallapoosa River at Milstead AL 32.4489 -85.8975 MNJA1 Cahaba River at Marion Junction AL 32.4439 -87.1803 MRFA1 Alabama River near Millers Ferry Dam AL 32.1000 -87.3978 NEWA1 Choctawhatchee River near Newton AL 31.3428 -85.6106 OCBA1 Little Claybank Creek near Ozark AL 31.4583 -85.6678 PTAA1 Conecuh River near River Falls AL 31.3611 -86.5197 RVFA1 Conecuh River at River Falls AL 31.3481 -86.5294 SARA1 Bayou Sara at Saraland AL 30.8200 -88.0700 SAYA1 Locust Fork at Sayre AL 33.7097 -86.9833 SCRA1 Tennessee River at Scottsboro AL 34.6436 -85.9803 SELA1 Alabama River at Selma AL 32.4056 -87.0186 SKPA1 West Fork Choctawhatchee River near Skipperville AL 31.5750 -85.5000 SLLA1 Little Double Bridges Creek near Sellersville AL 31.1297 -85.9842 SSNA1 Pea River near Samson AL 31.1125 -86.0994 STXA1 Styx River near Elsanor AL 30.6056 -87.5472 SUTA1 Cahaba River near Suttle AL 32.5292 -87.1989 TCLA1 Black Warrior River at Holt Lock and Dam AL 33.2528 -87.4514 TEXA1 East Fork Choctawhatchee River near Texasville AL 31.7500 -85.3583 THDA1 Black Warrior at Holt Lock and Dam AL 33.2528 -87.4514 TODA1 Black Warrior River at Oliver Lock and Dam AL 33.2092 -87.5964 TYLA1 Alabama River at R.F. Henry Lock and Dam AL 32.3222 -86.7839 WDLA1 Tallapoosa River at Wadley AL 33.1167 -85.5608 WDVA1 Paint Rock River near Woodville AL 34.6242 -86.3064 WETA1 Coosa River at Wetumpka AL 32.5369 -86.2089 WHIA1 Tennessee River at Whitesburg AL 34.5717 -86.5581 WLDA1 Black Warrior River at Selden Lock and Dam AL 32.7772 -87.8414 AKDA4 Ouachita River at Arkadelphia AR 34.1211 -93.0461 ARSA4 Mississippi River near Arkansas City AR 33.5514 -91.2383 AUGA4 White River at Augusta AR 35.2944 -91.3942 BAGA4 White River at Batesville AR 35.7603 -91.6411 BHTA4 Little Missouri River near Boughton AR 33.8756 -93.3044 BKRA4 Black River at Black Rock AR 36.1025 -91.0978 BRYA4 Kings River near Berryville AR 36.4272 -93.6208 BTNA4 Saline River at Benton AR 34.5678 -92.6103 CALA4 Ouachita River at Thatcher Lock and Dam near Calion AR 33.3111 -92.4850 CAMA4 Ouachita River at Camden AR 33.5969 -92.8181 CLDA4 White River at Clarendon AR 34.6856 -91.3153 CLRA4 White River at Calico Rock AR 36.1161 -92.1431 CRGA4 Black River at Corning AR 36.4019 -90.5414 DANA4 Petit Jean River at Danville AR 35.0667 -93.4000 DARA4 Arkansas River at Dardanelle AR 35.2261 -93.1494 DSCA4 White River at Des Arc #2 AR 34.9767 -91.4925 FELA4 Ouachita River at Felsenthal AR 33.0764 -92.1236 FLTA4 Red River at Fulton AR 33.6203 -93.8206 GEOA4 White River at Georgetown AR 35.1289 -91.4497 GRVA4 Fourche Lafave River near Gravelly AR 34.8725 -93.6567 HDYA4 Spring River at Hardy AR 36.3136 -91.4828 HEEA4 Mississippi River at Helena AR 34.5158 -90.5842 HRGA4 Little River at Horatio AR 33.9194 -94.3875 HUSA4 Fourche Lafave River near Houston AR 35.0122 -92.7233 IMBA4 Spring River at Imboden AR 36.2053 -91.1719 INGA4 Red River at Index AR 33.5519 -94.0411 JUDA4 Little Red River at Judsonia AR 35.2678 -91.6394 LCRA4 Saint Francis River at Lake City AR 35.8208 -90.4325 LITA4 Arkansas River at Little Rock AR 34.7497 -92.2692 MLBA4 Mulberry River at Mulberry AR 35.5772 -94.0156 MORA4 Arkansas River at Morrilton AR 35.1269 -92.7317 MSNA4 St Francis River Diversion Ditch at Madison AR 35.0131 -90.7192 NPTA4 White River at Newport AR 35.6053 -91.2889 OSGA4 Mississippi River below Osceola AR 35.6606 -89.9331 OZGA4 Arkansas River at Ozark Lock and Dam AR 35.4725 -93.8128 PBFA4 Arkansas River at Pine Bluff AR 34.2886 -91.9947 PFAA4 Arkansas River at Pendleton AR 33.9792 -91.3778 PLGA4 L'Anguille River at Palestine AR 34.9728 -90.8847 POCA4 Black River at Pocahontas AR 36.2542 -90.9703 PTTA4 Cache River near Patterson AR 35.2694 -91.2375 RDTA4 Ouachita River at Jones Mill DCP AR 34.4261 -92.8908 RIGA4 Right Hand Chute Little River at Rivervale AR 35.6717 -90.3381 RVSA4 Eleven Point River near Ravenden Springs AR 36.3464 -91.1142 RYEA4 Saline River near Rye AR 33.7008 -92.0258 SBFA4 Red River at Springbank Ferry AR 33.0894 -93.8594 SFRA4 Saint Francis River near Saint Francis AR 36.4558 -90.1378 SJOA4 Buffalo River near St Joe AR 35.9831 -92.7472 TODA4 Arkansas River at Toad Suck Lock and Dam Tailwater AR 35.0772 -92.5397 VBRA4 Lee Creek near Van Buren AR 35.4839 -94.3928 VBUA4 Arkansas River at Van Buren AR 35.4314 -94.3561 AFRA3 Agua Fria River above Rock Springs AZ 34.0156 -112.2283 CLDA3 Gila River at San Carlos Reservoir AZ 33.1756 -110.5272 CSCA3 Santa Cruz River at Cortaro AZ 32.3511 -111.0939 DUUA3 Gila River at Duncan AZ 32.7244 -109.0992 GDTA3 Gila at Dateland AZ 32.8822 -113.6061 GIDA3 Gila River near Dome AZ 32.7608 -114.4197 GLCA3 Gila River near Calva AZ 33.1856 -110.2194 GLHA3 Gila River near Solomon AZ 32.8683 -109.5106 GLKA3 Gila River at Kelvin AZ 33.1028 -110.9758 GRMA3 Gila River near Maricopa AZ 33.1672 -112.0067 HAMA3 Hassayampa River near Morristown AZ 33.8850 -112.6614 LCJA3 Little Colorado near Joseph City AZ 34.9011 -110.2547 LCWA3 Little Colorado near Winslow AZ 35.0117 -110.6506 OAKA3 Oak Creek near Sedona AZ 34.8617 -111.7611 SCCA3 Santa Cruz River at Green Valley AZ 31.8714 -110.9794 SFCA3 San Francisco River at Clifton AZ 33.0494 -109.2953 SFFA3 Salt River at 51St Ave in Phoenix AZ 33.3997 -112.3353 SLCA3 Salt River near Chrysotile AZ 33.7981 -110.4994 SLPA3 Salt River at Tempe AZ 33.4394 -111.9603 SLRA3 Salt River near Roosevelt AZ 33.6192 -110.9214 STBA3 Santa Cruz River near Tubac AZ 31.6128 -111.0408 TSCA3 Santa Cruz River at Congress Street AZ 32.2219 -110.9811 VLTA3 Virgin River near Littlefield AZ 36.8917 -113.9236 APCC1 Napa River near Napa CA 38.3678 -122.3022 ARCC1 Mad River near Arcata CA 40.9097 -124.0597 AROC1 Pajaro River at Chittenden CA 36.9003 -121.7172 ATIC1 San Joaquin Delta at Antioch CA 38.0167 -121.8000 BDBC1 Sacramento River above Bend Bridge CA 40.2886 -122.1856 BRDC1 Salinas River near Bradley CA 35.9281 -120.9839 BRGC1 Van Duzen River near Bridgeville CA 40.4806 -123.8897 BRWC1 Bear River above Wheatland CA 39.0003 -121.4056 BTCC1 Sacramento River at Butte City CA 39.4558 -121.9939 CEMC1 East Fork Carson River below Markleeville CA 38.7147 -119.7639 CLAC1 Sacramento River at Colusa Weir CA 39.2367 -121.9936 CLKC1 Clear Lake at Lakeport CA 39.0392 -122.9122 CLLC1 Calleguas Creek at California State University Channel Islands Bridge CA 34.1794 -119.0389 CLSC1 Sacramento River at Moulton Weir CA 39.3836 -122.0217 CLUC1 Sacramento River at Colusa Bridge CA 39.2142 -121.9992 CNBC1 Pit River near Canby CA 41.4061 -120.9267 CREC1 Smith River near Crescent City CA 41.7917 -124.0750 CYEC1 Coyote Creek near Edenvale CA 37.2708 -121.7964 DCHC1 Donner Creek at Hwy 89 near Truckee CA 39.3211 -120.2069 DCKC1 Donner Creek at Donner Lake near Truckee CA 39.3236 -120.2333 EWBC1 East Walker River below Bridgeport Reservoir CA 38.3278 -119.2139 FARC1 Truckee River at Farad CA 39.4281 -120.0331 FBLC1 Feather River at Boyd's Landing CA 39.0450 -121.6111 FMWC1 Sacramento River at Fremont Weir CA 38.7669 -121.6669 FRNC1 Eel River at Fernbridge CA 40.6158 -124.2017 FSNC1 San Diego River at Fashion Valley CA 32.7650 -117.1678 FTDC1 Smith River near Dr Fine Bridge CA 41.8808 -124.1353 FTJC1 Scott River near Fort Jones CA 41.6408 -123.0139 FTSC1 Eel River at Fort Seward CA 40.2181 -123.6317 GARC1 Sisquoc River at Garey CA 34.8939 -120.4117 GRIC1 Feather River near Gridley CA 39.3669 -121.6461 GSJC1 Guadalupe River at San Jose CA 37.3739 -121.9319 GUEC1 Russian River at Guerneville CA 38.4994 -122.9972 HAMC1 Sacramento River near Hamilton City CA 39.7511 -121.9361 HAPC1 Indian Creek at Happy Camp CA 41.8353 -123.3819 HEAC1 Russian River near Healdsburg CA 38.6133 -122.8353 HOOC1 Trinity River at Hoopa CA 41.0500 -123.6708 HOPC1 Russian River near Hopland CA 39.0267 -123.1294 IRGC1 Klamath River near Hornbrook CA 41.9281 -122.4431 KLMC1 Klamath River near Klamath CA 41.5111 -123.9783 LSBC1 Yolo Bypass near Lisbon CA 38.4750 -121.5872 MCNC1 Cosumnes River near Mcconnell CA 38.3581 -121.3431 MDSC1 Tuolumne River at Modesto CA 37.6269 -120.9869 MEEC1 Bear Creek above Mckee Road CA 37.3089 -120.4439 MFTC1 Middle Fork Feather River near Portola CA 39.8189 -120.4450 MHBC1 Cosumnes River at Michigan Bar CA 38.5003 -121.0442 MLIC1 San Joaquin Delta at Mallard Island CA 38.0500 -121.8500 MOSC1 San Joaquin River at Mossdale Bridge CA 37.7861 -121.3058 MRNC1 South Fork Eel River near Miranda CA 40.1822 -123.7750 MRYC1 Yuba River above Marysville CA 39.1758 -121.5239 MVVC1 Mojave River near Victorville CA 34.5731 -117.3197 NCOC1 Feather River near Nicolaus CA 38.8911 -121.6039 NRWC1 Santa Ynez River at Narrows CA 34.6372 -120.4244 NVRC1 Navarro River at Navarro CA 39.1706 -123.6669 NWMC1 San Joaquin River at Newman CA 37.3506 -120.9761 OBBC1 Stanislaus River at Orange Blossom Bridge CA 37.7831 -120.7500 ONSC1 Klamath River at Orleans CA 41.3036 -123.5333 ORFC1 Sacramento River at Ord Ferry CA 39.6278 -121.9914 ORIC1 Redwood Creek at Orick CA 41.2994 -124.0500 PATC1 San Joaquin River near Patterson CA 37.4939 -121.0811 POHC1 Merced River at Pohono Bridge CA 37.7169 -119.6653 PRBC1 Salinas River at Paso Robles CA 35.6286 -120.6833 RDBC1 Sacramento River below Red Bluff Diversion Dam CA 40.1542 -122.2019 RDRC1 Carmel River at Robles Del Rio CA 36.4744 -121.7278 RMSC1 Cache Creek at Rumsey Bridge CA 38.8900 -122.2381 RVBC1 Sacramento River at Rio Vista Bridge CA 38.1597 -121.6864 SACC1 Sacramento River at I Street Bridge CA 38.5867 -121.5044 SAMC1 American River at H Street Bridge CA 38.5689 -121.4225 SBRC1 Salmon River near Somes Bar CA 41.3767 -123.4858 SCOC1 Eel River near Scotia CA 40.4917 -124.0986 SCPC1 Santa Clara River at Piru CA 34.4036 -118.7383 SEIC1 Klamath River near Seiad Valley CA 41.8539 -123.2311 SESC1 Sespe Creek at Fillmore CA 34.4508 -118.9250 SHEC1 Napa River near St Helena CA 38.5111 -122.4539 SLOC1 San Luis Rey River at Oceanside CA 33.2181 -117.3594 SPRC1 Salinas River near Spreckels CA 36.6311 -121.6714 STVC1 Merced River at Stevinson CA 37.3708 -120.9294 SUSC1 Susan River at Susanville CA 40.4136 -120.6642 TEHC1 Sacramento River at Tehama Bridge CA 40.0286 -122.1178 THTC1 Mokelumne River near Benson's Ferry Near Thornton CA 38.2556 -121.4392 TISC1 Sacramento River at Tisdale Weir CA 39.0267 -121.8211 TRCC1 Truckee River near Truckee CA 39.2964 -120.2044 UTRC1 Upper Truckee River at South Lake Tahoe CA 38.9225 -119.9906 VCAC1 Santa Clara River at Victoria Avenue CA 34.2350 -119.2158 VNCC1 Delta above "Venice Island, Delta" CA 38.0500 -121.4961 VNSC1 San Joaquin River near Vernalis CA 37.6761 -121.2653 VONC1 Sacramento River at Verona CA 38.7744 -121.5972 VRVC1 Ventura River at Foster Park CA 34.3514 -119.3064 VWBC1 Sacramento River at Vina Woodson Bridge CA 39.9089 -122.0922 WOOC1 West Fork Carson River at Woodfords CA 38.7697 -119.8328 WWBC1 West Walker River near Coleville CA 38.3797 -119.4492 YDRC1 Santa Margarita River at Ysidora CA 33.2369 -117.3872 YLOC1 Cache Creek at Yolo CA 38.7272 -121.8061 YREC1 Shasta River near Yreka CA 41.8231 -122.5944 YUBC1 Feather River at Yuba City CA 39.1389 -121.6047 ADLC2 Arkansas River near Avondale CO 38.2481 -104.3986 ALAC2 Rio Grande River at Alamosa CO 37.4808 -105.8775 ALEC2 East River at Almont CO 38.6644 -106.8475 APNC2 Roaring Fork River near Aspen CO 39.1800 -106.8014 ARCC2 Arkansas River near Rocky Ford CO 38.0644 -103.6900 BELC2 South Boulder Creek near Eldorado Springs CO 39.9328 -105.3053 BIMC2 Big Thompson River near Loveland CO 40.4217 -105.2261 BLRC2 Blue River below Dillon CO 39.6256 -106.0658 BOCC2 Boulder Creek at Boulder CO 40.0147 -105.2803 BUEC2 Blue River at Blue River CO 39.4558 -106.0311 BZNC2 South Platte River near Balzac CO 40.3578 -103.5286 CAMC2 Colorado River near Cameo CO 39.2392 -108.2658 CBGC2 Colorado River near Granby CO 40.1208 -105.9000 CCUC2 Colorado River near Co-Ut State Line CO 39.1328 -109.0264 CDMC2 Arkansas River near Fowler CO 38.1258 -103.9114 CLOC2 Uncompahgre River at Colona CO 38.3314 -107.7789 CNCC2 Arkansas River at Canon City CO 38.4339 -105.2567 DCKC2 Dallas Creek at Dallas Creek At Ridgway CO 38.1778 -107.7578 DELC2 Gunnison River at Delta CO 38.7531 -108.0783 DKKC2 North Fork Big Thompson River at Drake CO 40.4333 -105.3394 DNRC2 Rio Grande River near Del Norte CO 37.6894 -106.4606 DNVC2 South Platte River at Denver CO 39.7597 -105.0283 DRBC2 Clear Creek at Westminster CO 39.8275 -104.9558 DRGC2 Animas River at Durango CO 37.2792 -107.8800 DRRC2 Dolores River below Rico CO 37.6389 -108.0597 DUMC2 South Platte River at Denver CO 39.7597 -105.0000 EGLC2 Colorado River near Dotsero CO 39.6447 -107.0781 ENMC2 Elk River at Routt County Road 42 CO 40.5147 -106.9536 ENWC2 South Platte River at Englewood CO 39.6325 -105.0144 FCHC2 Fountain Creek at Pueblo CO 38.2878 -104.6006 FHAC2 Fountain Creek near Fountain CO 38.6017 -104.6697 FNEC2 Fountain Creek at Colorado Springs CO 38.8164 -104.8222 FRKC2 Cherry Creek near Franktown CO 39.3558 -104.7628 FRWC2 Fraser River at Winter Park CO 39.9000 -105.7761 FTDC2 Cache La Poudre River at The Canyon Mouth CO 40.6644 -105.2239 GCOC2 Colorado River below Glenwood Springs CO 39.5550 -107.3378 GJNC2 Gunnison River above Grand Junction CO 38.9833 -108.4508 GLDC2 Clear Creek at Golden CO 39.7531 -105.2347 GORC2 Gore Creek near Minturn CO 39.6094 -106.4472 GPSC2 Eagle River below Gypsum CO 39.6494 -106.9536 GRPC2 Cache La Poudre River near Greeley CO 40.4178 -104.6394 GUSC2 Gunnison River near Gunnison CO 38.5419 -106.9492 GWSC2 Roaring Fork River at Glenwood Springs CO 39.5447 -107.3306 HNDC2 South Platte River at Henderson CO 39.9223 -104.8688 HTSC2 Colorado River near Hot Sulphur Springs CO 40.0833 -106.0875 IDOC2 Clear Creek near Lawson CO 39.7658 -105.6256 JULC2 South Platte River near Julesburg CO 40.9750 -102.2514 KERC2 South Platte River near Kersey CO 40.4125 -104.5631 KRMC2 Colorado River near Kremmling CO 40.0367 -106.4394 LAPC2 Purgatoire River near Las Animas CO 38.0339 -103.2000 LEDC2 Arkansas River near Leadville CO 39.2489 -106.3481 LMAC2 Arkansas River at Lamar CO 38.1058 -102.6181 LNSC2 Saint Vrain Creek at Lyons CO 40.2203 -105.2628 LOVC2 Plum Creek near Sedalia CO 39.4383 -104.9825 LPHC2 La Plata River at Hesperus CO 37.2897 -108.0400 LPSC2 La Plata River below Redmesa CO 36.9997 -108.1881 LPVC2 Los Pinos River near Bayfield CO 37.3828 -107.5769 LXHC2 Arkansas River at La Junta CO 37.9906 -103.5319 MBLC2 Yampa River near Maybell CO 40.5031 -108.0333 MBNC2 Middle Boulder Creek at Nederland CO 39.9617 -105.5044 MNRC2 Mancos River near Mancos CO 37.3536 -108.2611 MRRC2 Bear Creek at Morrison CO 39.6531 -105.1956 NGTC2 North Platte River near Northgate CO 40.9367 -106.3392 NPTC2 Arkansas River near Nepesta CO 38.1789 -104.1389 OROC2 Boulder Creek at Orodell CO 40.0064 -105.3306 PCCC2 Plateau Creek near Cameo CO 39.1836 -108.2683 PDAC2 Arkansas River above Pueblo CO 38.2717 -104.7175 PDLC2 Arkansas River at Parkdale CO 38.4872 -105.3731 PGMC2 Purgatoire River at Madrid CO 37.1294 -104.6394 PGRC2 Purgatoire River below Trinidad Lake CO 37.1439 -104.5472 PNNC2 Fountain Creek near Pinon CO 38.4294 -104.5981 POUC2 Cache La Poudre River at Fort Collins CO 40.5892 -105.0692 PRTC2 Arkansas River at Portland CO 38.3883 -105.0156 PSPC2 San Juan River at Pagosa Springs CO 37.2667 -107.0081 PTRC2 Purgatoire River at Trinidad CO 37.1725 -104.5075 RCYC2 Crystal River above Redstone CO 39.2322 -107.2267 SALC2 Arkansas River at Salida CO 38.5458 -106.0100 SCCC2 Surface Creek at Cedaredge CO 38.9017 -107.9206 SCVC2 St Charles River at Vineland CO 38.2456 -104.4858 SHRC2 Bear Creek at Sheridan CO 39.6522 -105.0331 SKEC2 Snake River near Montezuma CO 39.6056 -105.9425 SMPC2 San Miguel River near Placerville CO 38.0422 -108.1331 SOMC2 N Fk Gunnison River near Somerset CO 38.9258 -107.4336 SPTC2 South Platte River at South Platte CO 39.4092 -105.1694 STMC2 Yampa River at Steamboat Springs CO 40.4831 -106.8325 TCFC2 Tenmile Creek at Frisco CO 39.5753 -106.1100 UNRC2 Uncompahgre River at Ridgway CO 38.2406 -107.7603 WFRC2 Williams Fork below Williams Fork Reservoir CO 40.0358 -106.2050 WNAC2 South Platte River near Weldona CO 40.3214 -103.9203 WRMC2 White River near Meeker CO 40.0336 -107.8622 WSVC2 Arkansas River near Wellsville CO 38.5028 -105.9392 BKFC3 Still River at Brookfield CT 41.4661 -73.4036 BKRC3 Branch Brook at Black Rock Lake Tailwater CT 41.6572 -73.1036 FLVC3 Housatonic River at Falls Village CT 41.9572 -73.3697 GAYC3 Housatonic River at Gaylordsville CT 41.6531 -73.4903 HANC3 Hancock Brook at Hancock Brook Lake CT 41.6231 -73.0367 HFDC3 Connecticut River at Hartford CT 41.7694 -72.6678 HMDC3 Hall Meadow Brook at Hall Meadow Dam CT 41.8694 -73.1678 NBLC3 Northfield Brook at Northfield Br Lake CT 41.6800 -73.0908 ROXC3 Shepaug River at Roxbury CT 41.5497 -73.3303 SBYC3 Pomperaug River at Southbury CT 41.4806 -73.2250 SIMC3 Farmington River at Simsbury CT 41.8697 -72.7981 STVC3 Housatonic River at Stevenson Dam CT 41.3839 -73.1681 TARC3 Farmington River at Tariffville CT 41.9083 -72.7611 TMSC3 Naugatuck River at Thomaston Dam CT 41.6947 -73.0622 TMTC3 Naugatuck River below Thomaston CT 41.6736 -73.0700 TMVC3 Connecticut River at Thompsonville CT 41.9872 -72.6058 TORC3 East Br Naugatuck River at Torrington CT 41.8033 -73.1183 UNVC3 Farmington River at Unionville CT 41.7558 -72.8872 WLMC3 Shetucket River below Willimantic CT 41.7003 -72.1825 CHBD1 Christina River at Coochs Bridge DE 39.6375 -75.7278 DPKD1 White Clay Creek near Newark DE 39.6992 -75.6750 RCCD1 Red Clay Creek at Wooddale DE 39.7628 -75.6364 WMND1 Brandywine Creek at Wilmington DE 39.7694 -75.5733 ALTF1 Chipola River near Altha FL 30.5339 -85.1653 APCF1 Gulf Of Mexico at Apalachicola Tide Gauge FL 29.7267 -84.9817 ARCF1 Peace River at Arcadia FL 27.2219 -81.8761 ARHF1 Horse Creek near Arcadia FL 27.1992 -81.9886 ASTF1 St Johns River near Astor FL 29.1667 -81.5222 BAKF1 Blackwater River near Baker FL 30.8333 -86.7347 BARF1 Peace River at Bartow FL 27.9019 -81.8175 BFDF1 Suwannee River at Branford FL 29.9556 -82.9278 BLOF1 Apalachicola River near Blountstown FL 30.4250 -85.0314 BLXF1 Ochlockonee River near Bloxham FL 30.3831 -84.6550 BRUF1 Choctawhatchee River near Bruce FL 30.4508 -85.8983 CARF1 Choctawhatchee River near Caryville FL 30.7756 -85.8278 CHAF1 Apalachicola River at Chattahoochee FL 30.7008 -84.8592 CKYF1 Gulf Of Mexico at Cedar Key Tide Gauge FL 29.1350 -83.0317 CONF1 Ochlockonee River near Concord FL 30.6689 -84.3053 CRMF1 Withlacoochee River at Croom FL 28.5925 -82.2222 CRVF1 Shoal River near Crestview FL 30.6972 -86.5708 CTYF1 Escambia River near Century FL 30.9650 -87.2342 DLAF1 St Johns River near Deland FL 29.0081 -81.3828 DNLF1 Withlacoochee at Dunnellon FL 29.0458 -82.4647 DOUF1 Suwannee River at Dowling Park FL 30.2447 -83.2497 ECOF1 Econfina River near Perry FL 30.1706 -83.8239 ELFF1 Anclote River at Elfers FL 28.2139 -82.6667 ELLF1 Suwannee River at Ellaville FL 30.3844 -83.1719 FENF1 Fenholloway River near Perry FL 30.0711 -83.6625 FOLF1 Fenholloway River near Foley FL 30.1167 -83.3833 FOWF1 Hillsborough River at Temple Terrace FL 28.0542 -82.3639 FTWF1 Santa Fe River at Hildreth FL 29.9167 -82.8667 FWBF1 Suwannee River at Fowler Bluff FL 29.3983 -83.0222 FWHF1 Santa Fe River at Fort White FL 29.8486 -82.7153 GENF1 St. Johns River near Geneva FL 28.7139 -81.0356 HLDF1 Withlacoochee at Holder FL 28.9886 -82.3497 HVNF1 Ochlockonee River near Havana FL 30.5539 -84.3842 JBDF1 Ochlockonee River at Jackson Bluff Dam FL 30.3875 -84.6458 LAMF1 Aucilla River at Lamont FL 30.3697 -83.8067 LIKF1 Suwannee River at Suwannee Springs FL 30.3928 -82.9333 LITF1 Alafia River at Lithia FL 27.8719 -82.2114 LURF1 Suwannee River at Luraville FL 30.0997 -83.1717 MACF1 St Mary'S River at Macclenny FL 30.3586 -82.0817 MALF1 Chipola River at Marianna FL 30.7728 -85.2164 MDLF1 Black Creek at Middleburg FL 30.1131 -81.9067 MHDF1 Shoal River near Mossy Head FL 30.7958 -86.3069 MIDF1 Little River near Midway FL 30.5122 -84.5236 MKCF1 Myakka River at Myakka River State Park FL 27.2403 -82.3139 MKHF1 Manatee River near Myakka Head FL 27.4733 -82.2114 MLGF1 Yellow River at Milligan FL 30.7528 -86.6292 MLNF1 Big Coldwater Creek near Milton FL 30.7083 -86.9722 MORF1 Hillsborough River at Morris Bridge FL 28.0986 -82.3114 MRKF1 St. Marks River at St. Marks FL 30.1506 -84.2106 MSPF1 Manatee Spring near Manatee Springs FL 29.4900 -82.9769 MTSF1 Suwannee River near Manatee Springs FL 29.4886 -82.9806 NEPF1 St. Marks River near Newport FL 30.2711 -84.1483 NUTF1 Aucilla River near Nutall Rise FL 30.1122 -83.9800 OCLF1 Ochlockonee River near Smith Creek FL 30.1764 -84.6681 PACF1 Gulf Of Mexico at Panama City Tide Gauge FL 30.1519 -85.6669 PINF1 Withlacoochee River near Pinetta FL 30.5953 -83.2597 PITF1 Choctawhatchee River near Pittman FL 30.9497 -85.8431 PLMF1 Fisheating Creek near Palmdale FL 26.9322 -81.3150 RCKF1 Suwannee River at Rock Bluff Near Bell FL 29.7911 -82.9244 RYEF1 Manatee River at Rye Bridge FL 27.5133 -82.3672 SHIF1 Shingle Creek at Campbell FL 28.2669 -81.4481 SMAF1 Apalachicola River near Sumatra FL 29.9492 -85.0156 SNFF1 St. Johns River near Sanford FL 28.8378 -81.3244 SNWF1 New River near Sumatra FL 30.0386 -84.8439 SOPF1 Sopchoppy River near Sopchoppy FL 30.1292 -84.4944 STEF1 Steinhatchee River near Steinhatchee FL 29.7864 -83.3217 TELF1 Telogia Creek near Bristol FL 30.4264 -84.9278 TRBF1 Withlacoochee at Trilby FL 28.4797 -82.1778 TREF1 Santa Fe River at Three Rivers Estates FL 29.9333 -82.8000 VRNF1 Holmes Creek at Vernon FL 30.6264 -85.7125 WAHF1 Apalachicola River near Wewahitchka FL 30.1339 -85.1442 WCXF1 Suwannee River near Wilcox FL 29.5894 -82.9367 WDRF1 Apalachicola River at Woodruff L&D FL 30.7081 -84.8656 WIMF1 Little Manatee River at Wimauma FL 27.6708 -82.3528 WRGF1 Cypress Creek at Worthington Gardens FL 28.1856 -82.4008 WSPF1 Suwannee River at White Springs FL 30.3256 -82.7383 WTMF1 Withlacoochee River near Madison FL 30.4822 -83.2431 ZFSF1 Peace River at Zolfo Springs FL 27.5042 -81.8011 ZPHF1 Hillsborough River near Zephyrhills FL 28.1497 -82.2319 AANG1 Peachtree Creek near Atlanta GA 33.8194 -84.4078 ABBG1 Ocmulgee River near Abbeville GA 31.9967 -83.2792 ABNG1 Flint River at Albany GA 31.5942 -84.1442 ACDG1 Middle Oconee River near Arcade GA 34.0317 -83.5633 ADLG1 Little River near Adel GA 31.1550 -83.5436 APHG1 Big Creek near Alpharetta GA 34.0506 -84.2694 ATKG1 Satilla River at Atkinson GA 31.2206 -81.8675 AUGG1 Butler Creek at Augusta GA 33.3736 -81.9431 AUSG1 Sweetwater Creek near Austell GA 33.7764 -84.6156 AYSG1 Satilla River at Waycross GA 31.2381 -82.3247 BAXG1 Altamaha River at Baxley GA 31.9389 -82.3536 BFYG1 Savannah River at Burtons Ferry GA 32.9389 -81.5028 BGEG1 Flint River at Bainbridge GA 30.9114 -84.5800 BVLG1 Turkey Creek near Byromville GA 32.1956 -83.9022 BWKG1 Apalachee River near Bostwick GA 33.7881 -83.4742 CARG1 Broad River above Carlton GA 34.0761 -83.0033 CHRG1 Altamaha River at Charlotte GA 31.9517 -82.5297 CLUG1 Flint River near Carsonville GA 32.7214 -84.2325 CLYG1 Savannah River near Clyo GA 32.5281 -81.2689 CMUG1 Chattahoochee River at Columbus GA 32.4531 -84.9953 CNNG1 Etowah River at Canton GA 34.2400 -84.4947 CNOG1 Canoochee River near Claxton GA 32.1842 -81.8897 COLA1 Chattahoochee River at Columbia L&D GA 31.2592 -85.1103 CTVG1 Etowah River near Cartersville GA 34.1428 -84.8392 CTWG1 Big Cedar Creek near Cedartown GA 33.9958 -85.2647 DBNG1 Oconee River near Dublin GA 32.5444 -82.8947 DCTG1 Altamaha River at Doctortown GA 31.6544 -81.8281 DSNG1 Kinchafoonee Creek at Pinewood Rd GA 31.7644 -84.2533 DWSG1 Etowah River below Dawsonville GA 34.3578 -84.1136 EDEG1 Ogeechee River near Eden GA 32.1914 -81.4161 ELIG1 Coosawattee River near Ellijay GA 34.6750 -84.5086 ENGG1 Lookout Creek above New England GA 34.8975 -85.4631 EVRG1 Altamaha River at Everett City GA 31.4269 -81.6056 FOGG1 Chattahoochee River at W.F. George L&D GA 31.6233 -85.0639 HAWG1 Ocmulgee River near Hawkinsville GA 32.2806 -83.4611 HDCG1 Chattahoochee River at Helen GA 34.7008 -83.7294 HRAG1 Little River near Hahira GA 31.0008 -83.4583 HRTG1 Lake Hartwell at Hartwell Dam GA 34.3608 -82.8278 IRCG1 Spring Creek near Iron City GA 31.0397 -84.7383 LBRG1 Ocmulgee River near Lumber City GA 31.9183 -82.6739 LOVG1 Flint River near Lovejoy GA 33.4156 -84.3847 MACG1 Ocmulgee River near Macon GA 32.8386 -83.6206 MARG1 Sope Creek near Marietta GA 33.9539 -84.4433 MCKG1 Muckalee Creek near Leesburg GA 31.7761 -84.1394 MDVG1 Ogeechee River near Midville GA 32.8144 -82.2353 MLGG1 Oconee River near Milledgeville GA 33.0894 -83.2156 MNTG1 Flint River near Montezuma GA 32.2931 -84.0436 MOCG1 Middle Oconee River near Athens GA 33.9467 -83.4228 MTVG1 Oconee River near Mount Vernon GA 32.1911 -82.6317 MYRG1 Yellow River near Conyers Below Milstead GA 33.6669 -83.9381 NCKG1 Nancy Creek near Buckhead GA 33.8692 -84.3789 NCRG1 Chattahoochee River near Norcross GA 33.9972 -84.2019 NEWG1 Flint River at Newton GA 31.3067 -84.3386 NOCG1 North Oconee River at Athens GA 33.9697 -83.3775 OKAG1 Okapilco Creek near Quitman GA 30.8256 -83.5625 OKFG1 Flint River at Oakfield GA 31.7250 -84.0186 OTKG1 Oothkalooga Creek near Calhoun GA 34.4956 -84.9653 PCTG1 Proctor Creek at Atlanta GA 33.7756 -84.4408 PNFG1 Oconee River near Penfield GA 33.7211 -83.2956 PRSG1 Kinchafoonee Creek near Preston GA 32.0525 -84.5483 PSYG1 Hiwassee River at Macedonia GA 34.9058 -83.7222 QUTG1 Withlacoochee River near Quitman GA 30.7931 -83.4536 RDBG1 Coosawattee River above Redbud GA 34.5642 -84.8331 REDG1 Ohoopee River near Reidsville GA 32.0775 -82.1767 REYG1 Spring Creek near Reynoldsville St. Park GA 30.8706 -84.7617 RFDG1 Ogeechee River near Rocky Ford GA 32.6492 -81.8408 ROEG1 Etowah River near Rome GA 34.2322 -85.1169 RSCG1 Oostanaula River near Resaca GA 34.5772 -84.9419 RTMG1 Oostanaula River near Rome GA 34.2606 -85.1708 RWLG1 Chattahoochee River near Roswell GA 33.9858 -84.3161 STNG1 Alapaha River at Statenville GA 30.7039 -83.0333 SWEG1 Suwanee Creek near Suwanee GA 34.0322 -84.0894 TLNG1 Conasauga River near Tilton GA 34.6667 -84.9283 TMLG1 Ochlockonee River near Thomasville GA 30.8756 -84.0456 VDRG1 Withlacoochee River near Valdosta GA 30.8925 -83.3189 VDSG1 Withlacoochee River above Valdosta GA 30.9472 -83.2728 VING1 Chattahoochee River near Vinings Paces Ferry Road GA 33.8589 -84.4542 WHTG1 Chattahoochee River near Whitesburg GA 33.4769 -84.9011 WTPG1 Chattahoochee River near West Point GA 32.8861 -85.1822 WWCG1 Flint River at Lake Blackshear GA 31.8453 -83.9408 AESI4 South Skunk River near Ames Us 30 IA 42.0064 -93.5955 AGNI4 East Fork Des Moines River near Algona IA 43.0827 -94.2306 AGSI4 Skunk River at Augusta IA 40.7536 -91.2769 AKRI4 Big Sioux River at Akron IA 42.8375 -96.5617 AKWI4 South River near Ackworth IA 41.3372 -93.4863 ALOI4 Cedar River at Waterloo IA 42.4953 -92.3340 ALTI4 Floyd River at Alton IA 42.9819 -96.0008 AMEI4 South Skunk River near Ames IA 42.0665 -93.6201 AMWI4 Squaw Creek at Ames IA 42.0225 -93.6304 ANSI4 Wapsipinicon River near Anamosa IA 42.0833 -91.2674 ATCI4 East Nishnabotna River near Atlantic IA 41.3461 -95.0769 BDFI4 East Fork 102 River at Bedford IA 40.6607 -94.7163 BLVI4 Mississippi River at Bellevue IA 42.2728 -90.4211 BRLI4 Mississippi River at Burlington IA 40.7981 -91.0917 BSSI4 Cedar Creek near Bussey IA 41.2190 -92.9085 CCYI4 Cedar River at Charles City IA 43.0622 -92.6736 CEDI4 Cedar River at Cedar Falls IA 42.5377 -92.4440 CFXI4 South Skunk River at Colfax IA 41.6819 -93.2466 CHKI4 Little Sioux River at Cherokee IA 42.7447 -95.5494 CHTI4 Chariton River near Chariton IA 40.9519 -93.2598 CIDI4 Cedar River at Cedar Rapids IA 41.9719 -91.6669 CJTI4 Iowa River at Columbus Jct IA 41.2783 -91.3458 CLVI4 Walnut Creek at Clive IA 41.6114 -93.7764 CMMI4 Mississippi River at Camanche IA 41.7806 -90.2521 CNEI4 Cedar River near Conesville IA 41.4092 -91.2903 CRRI4 Little Sioux River near Correctionville IA 42.4822 -95.7928 DAKI4 East Fork Des Moines River at Dakota City IA 42.7239 -94.1934 DBQI4 Mississippi River at Dubuque IA 42.4994 -90.6531 DCHI4 Upper Iowa River at Dorchester IA 43.4211 -91.5086 DEHI4 Upper Iowa River at Decorah IA 43.3050 -91.7953 DEMI4 Raccoon River at Des Moines Fleur Drive IA 41.5824 -93.6418 DESI4 Des Moines River at Southeast 6th IA 41.5785 -93.6054 DEWI4 Wapsipinicon River near DeWitt IA 41.7670 -90.5349 DFMI4 Fourmile Creek at Des Moines IA 41.6138 -93.5456 DLDI4 Mississippi River at Dubuque LD11 IA 42.5386 -90.6464 DMOI4 Des Moines River at 2nd Ave IA 41.6123 -93.6199 DMWI4 Raccoon River at Des Moines Highway 28 IA 41.5619 -93.7033 DOSI4 Walnut Creek at Des Moines IA 41.5875 -93.7033 DVSI4 Thompson River at Durango IA 40.6403 -93.8083 EDYI4 Des Moines River near Davis City IA 41.1510 -92.6360 EFWI4 North Raccoon River near Eddyville IA 41.9878 -94.3769 EKDI4 Turkey River at Elkader IA 42.8433 -91.4011 EMTI4 West Fork Des Moines River at Emmetsburg IA 43.1264 -94.7063 EOKI4 Mississippi River at Keokuk IA 40.3975 -91.3742 ESVI4 West Fork Des Moines River at Estherville IA 43.3991 -94.8460 EWOI4 Little Sioux River near Milford IA 43.3772 -95.1281 FNHI4 West Fork Cedar River at Finchford IA 42.6297 -92.5432 FODI4 Des Moines River at Fort Dodge IA 42.5081 -94.2032 GRBI4 Turkey River at Garber IA 42.7400 -91.2617 GRMI4 Beaver Creek near Grimes IA 41.6885 -93.7349 GTTI4 Mississippi River at Guttenberg Dam IA 42.7856 -91.0956 HAWI4 Big Sioux River at Hawarden IA 42.9983 -96.4981 HBTI4 West Fork Des Moines River at Humboldt IA 42.7197 -94.2202 HMBI4 Nishnabotna River near Hamburg IA 40.6012 -95.6445 HNKI4 West Nishnabotna River at Hancock IA 41.3901 -95.3720 HOKI4 West Fork Ditch near Hornick IA 42.2269 -96.0778 ICLI4 Nodaway River at Clarinda IA 40.7432 -95.0145 IDNI4 Middle River near Indianola IA 41.4245 -93.5872 IDPI4 Wapsipinicon River at Independence IA 42.4636 -91.8952 IOWI4 Iowa River at Iowa City IA 41.6567 -91.5408 JANI4 Cedar River at Janesville IA 42.6483 -92.4652 JMEI4 Floyd River near James IA 42.5767 -96.3111 KALI4 English River at Kalona IA 41.4697 -91.7146 KEQI4 Des Moines River at Keosauqua IA 40.7278 -91.9594 LECI4 Mississippi River at Le Claire IA 41.5744 -90.4031 LGNI4 Boyer River at Logan IA 41.6418 -95.7827 LMRI4 Floyd River at Le Mars IA 42.8003 -96.1739 LNNI4 Little Sioux River at Linn Grove IA 42.8958 -95.2431 LNSI4 Mississippi River at Lansing IA 43.3603 -91.2133 LNTI4 Iowa River near Lone Tree IA 41.4238 -91.4787 LSSI4 Little Sioux River above Spencer IA 43.2128 -95.2392 MAPI4 Maple River at Mapleton IA 42.1568 -95.8103 MAQI4 Maquoketa River near Maquoketa IA 42.0833 -90.6328 MCGI4 Mississippi River at Mcgregor IA 43.0269 -91.1725 MCHI4 Maquoketa River at Manchester IA 42.4700 -91.4487 MCWI4 Winnebago River at Mason City IA 43.1650 -93.1927 MIFI4 Little Sioux River near Milford IA 43.3278 -95.2017 MIWI4 Iowa River at Marshalltown IA 42.0655 -92.9079 MOLI4 Chariton River near Moulton IA 40.6925 -92.7724 MRLI4 Floyd River at Merrill IA 42.7208 -96.2408 MROI4 Iowa River at Marengo IA 41.8128 -92.0647 MUSI4 Mississippi River at Muscatine IA 41.4167 -91.0333 NHRI4 Beaver Creek at New Hartford IA 42.5720 -92.6183 NRWI4 North River near Norwalk IA 41.4579 -93.6550 OBJI4 Milford Creek near Milford IA 43.3786 -95.1811 OOAI4 South Skunk River near Oskaloosa IA 41.3560 -92.6565 OTMI4 Des Moines River at Ottumwa IA 41.0108 -92.4115 PCHI4 Perry Creek near Hinton IA 42.6197 -96.3722 PCMI4 Perry Creek near Merrill IA 42.6933 -96.3700 PRMI4 South Fork Chariton River near Promise City IA 40.8004 -93.1927 PROI4 North Raccoon River near Perry IA 41.8354 -94.1320 PSGI4 Soldier River at Pisgah IA 41.8308 -95.9319 RAPI4 Rock River at Rock Rapids IA 43.4231 -96.1647 RDOI4 East Nishnabotna River at Red Oak IA 41.0089 -95.2424 RDPI4 West Nishnabotna River at Randolph IA 40.8733 -95.5814 REDI4 South Raccoon River at Redfield IA 41.5894 -94.1513 RKRI4 Rock River at Rock Rapids IA 43.4369 -96.1661 RKVI4 Rock River at Rock Valley IA 43.2144 -96.2942 ROWI4 Iowa River near Rowan IA 42.7603 -93.6220 SHLI4 Floyd River at Sheldon IA 43.1958 -95.8458 SHRI4 Shell Rock River at Shell Rock IA 42.7119 -92.5830 SIGI4 North Skunk River near Sigourney IA 41.3008 -92.2044 SIOI4 Perry Creek at Sioux City IA 42.5350 -96.4106 SLKI4 Little Sioux River near Orleans IA 43.4697 -95.1236 SPOI4 Ocheyedan River near Spencer IA 43.1281 -95.2106 SPWI4 Little Sioux River at Spencer IA 43.1367 -95.1439 STRI4 Des Moines River near Stratford IA 42.2519 -93.9969 STUI4 West Branch Floyd near Struble IA 42.9239 -96.1767 SXCI4 Big Sioux River at Sioux City IA 42.5244 -96.4806 TSTX5 Big Sioux River at Hawarden IA 42.9983 -96.4981 TSTX6 Big Sioux River at Akron IA 42.8369 -96.5628 TURI4 Little Sioux River near Turin IA 41.9649 -95.9721 VINI4 Cedar River at Vinton IA 42.1706 -92.0233 VNMI4 Raccoon River at Van Meter IA 41.5339 -93.9500 WAPI4 Iowa River at Wapello IA 41.1781 -91.1821 WBCI4 Boone River near Webster City IA 42.4320 -93.8056 ANTI1 Henrys Fork River at St. Anthony ID 43.9669 -111.6725 BFEI1 Kootenai River at Bonners Ferry ID 48.6981 -116.3125 BIGI1 Boise River at Glenwood Bridge ID 43.6606 -116.2792 BIUI1 Bear River at Idaho/Utah State Line ID 42.0131 -111.9206 BRAI1 Bear River near Pescadero ID 42.4017 -111.3561 BRBW4 Bear River near Border ID 42.2111 -111.0531 CAMI1 Weiser River near Cambridge ID 44.5794 -116.6433 CLDI1 St Joe River at Calder ID 47.2747 -116.1881 CTLI1 Coeur D'Alene River at Cataldo ID 47.5550 -116.3244 DGGI1 Teton River near Driggs ID 43.7819 -111.2092 EASI1 Moyie River at Eastport ID 48.9992 -116.1797 EMMI1 Payette River near Emmett ID 43.9306 -116.4417 ENVI1 North Fork Coeur D'Alene River at Enaville ID 47.5689 -116.2533 HALI1 Big Wood River at Hailey ID 43.5172 -114.3217 HEII1 Snake River near Heise ID 43.6125 -111.6600 HOTI1 Bruneau River near Hot Springs ID 42.7711 -115.7194 LERI1 Lemhi River near Lemhi ID 44.9400 -113.6378 LOCI1 Lochsa River near Lowell ID 46.1506 -115.5864 ORFI1 Clearwater River at Orofino ID 46.4786 -116.2564 OROI1 Clearwater River near Orofino ID 46.4731 -116.1778 PACI1 Paradise Creek at Moscow ID 46.7319 -117.0233 PIHI1 Portneuf River at Pocatello ID 42.8717 -112.4681 PLOI1 Palouse River near Potlatch ID 46.9153 -116.9500 PRLI1 South Fork Payette at Lowman ID 44.0853 -115.6222 PRPI1 Payette River near Payette ID 44.0422 -116.9253 REXI1 Henrys Fork River near Rexburg ID 43.8258 -111.9050 RIGI1 Little Salmon River at Riggins ID 45.4131 -116.3247 SELI1 Selway River near Lowell ID 46.0867 -115.5128 SHYI1 Snake River near Shelley ID 43.4131 -112.1350 SJMI1 St Joe River at St Maries ID 47.3167 -116.5978 SMNI1 Salmon River at Salmon ID 45.1833 -113.8944 SNAI1 Snake River at Blackfoot ID 43.1972 -112.3681 SPDI1 Clearwater River at Spalding ID 46.4486 -116.8264 STII1 South Fork Clearwater River at Stites ID 46.0867 -115.9756 TEAI1 Teton River near St. Anthony ID 43.9272 -111.6139 WEII1 Snake River near Weiser ID 44.2456 -116.9800 WHBI1 Salmon River at White Bird ID 45.7503 -116.3231 WODI1 Little Wood River near Carey ID 43.3900 -113.9997 WSRI1 Weiser River near Weiser ID 44.2700 -116.7722 AFBI2 Fox River at Algonquin Tailwater IL 42.1619 -88.2939 ALNI2 Mississippi River at Alton IL 38.8664 -90.1464 BEAI2 Illinois River at Beardstown IL 40.0203 -90.4367 BISI2 N.F. Vermilion River near Bismarck IL 40.2653 -87.6428 BMII2 Sugar Creek near Bloomington IL 40.4719 -89.0281 BOLI2 East Branch Du Page River at Bolingbrook IL 41.7181 -88.0706 BRKI2 Ohio River at Brookport Dam IL 37.1275 -88.6531 BVDI2 Kishwaukee River at Belvidere IL 42.2561 -88.8631 BYRI2 Rock River at Byron IL 42.1231 -89.2558 CARI2 Little Wabash River at Carmi IL 38.0922 -88.1561 CAYI2 Kaskaskia River at Carlyle Lake IL 38.6181 -89.3511 CDLI2 Sangamon River near Chandlerville IL 40.0619 -90.1558 CHBI2 Iroquois River near Chebanse IL 41.0089 -87.8242 CHSI2 Mississippi River at Chester IL 37.9039 -89.8356 CIRI2 Ohio River at Cairo IL 37.0000 -89.1625 CLAI2 Little Wabash River near Clay City IL 38.6347 -88.2972 CLMI2 La Moine River at Colmar IL 40.3303 -90.8961 CMOI2 Rock River at Como IL 41.7828 -89.7498 CNGI2 Mackinaw River near Congerville IL 40.6236 -89.2417 COLI2 Mazon River near Coal City IL 41.2861 -88.3597 CRLI2 Kaskaskia River at Carlyle IL 38.6172 -89.3539 DAYI2 Fox River at Dayton IL 41.3839 -88.7897 DEKI2 South Branch Kishwaukee River at De Kalb IL 41.9314 -88.7597 DNVI2 Vermilion River at Danville IL 40.1008 -87.5972 DSPI2 Des Plaines River near Des Plaines IL 42.0817 -87.8906 DXRI2 Rock River at Dixon IL 41.8447 -89.4861 EFFI2 Little Wabash near Effingham IL 39.1039 -88.5942 FARI2 East Fork Kaskaskia River near Fairman IL 38.6889 -89.1000 FEEI2 Pecatonica River at Freeport IL 42.3028 -89.6196 FLTI2 Mississippi River at Fulton IL 41.8944 -90.1567 GCTI2 Ohio River at Grand Chain Dam IL 37.2036 -89.0422 GENI2 Green River near Geneseo IL 41.4889 -90.1576 GLDI2 Mississippi River at Gladstone IL 40.8814 -91.0225 GOLI2 Ohio River at Golconda IL 37.3578 -88.4825 GREI2 Salt Creek near Greenview IL 40.1319 -89.7356 GRFI2 Mississippi River at Grafton IL 38.9681 -90.4289 GUNI2 Des Plaines River near Gurnee IL 42.3442 -87.9383 HARI2 Illinois River at Hardin IL 39.1603 -90.6153 HAVI2 Illinois River at Havana IL 40.2928 -90.0686 HNYI2 Illinois River at Henry IL 41.1072 -89.3561 HUTI2 Wabash River at Hutsonville IL 39.1342 -87.6583 ILNI2 Mississippi River at Ill. City IL 41.4256 -91.0128 IRQI2 Iroquois River at Iroquois IL 40.8228 -87.5814 JOSI2 Rock River near Joslin IL 41.5561 -90.1853 KHBI2 Mississippi River at Keithsburg IL 41.1061 -90.9594 LATI2 Rock River at Latham Park IL 42.3686 -89.0583 LAWI2 Embarras River at Lawrenceville IL 38.7236 -87.6639 LDRI2 Des Plaines River at Lincolnshire IL 42.2006 -87.9181 LNMI2 Spoon River at London Mills IL 40.7078 -90.2800 LNRI2 Vermilion River near Leonore IL 41.2083 -88.9308 LSLI2 Illinois River at La Salle IL 41.3236 -89.1108 MCRI2 Wabash River at Mount Carmel IL 38.4014 -87.7542 MILI2 Sugar Creek at Milford IL 40.6300 -87.7239 MLII2 Rock River at Moline IL 41.4625 -90.5000 MNGI2 Fox River at Montgomery IL 41.7336 -88.3333 MNTI2 Sangamon River at Monticello IL 40.0308 -88.5889 MOMI2 Kankakee River at Momence IL 41.1600 -87.6686 MORI2 Illinois River at Morris IL 41.3544 -88.4269 MROI2 Illinois River at Meredosia IL 39.8233 -90.5681 MURI2 Big Muddy River near Murphysboro IL 37.7583 -89.3278 NBAI2 North Branch Chicago River at Chicago Albany Ave IL 41.9742 -87.7061 NBOI2 Mississippi River at New Boston IL 41.1914 -91.0556 NLGI2 Illinois River at La Grange IL 39.9403 -90.5344 OKFI2 Sangamon River near Oakford IL 40.1242 -89.9850 OTWI2 Illinois River at Ottawa IL 41.3444 -88.8392 PETI2 Sangamon River at Petersburg IL 40.0133 -89.8383 PIAI2 Illinois River near Peoria IL 40.7022 -89.5644 PLMI2 Big Muddy River near Plumfield IL 37.8914 -89.0194 PNTI2 Vermilion River at Pontiac IL 40.8778 -88.6361 PRAI2 Illinois River at Peoria IL 40.6333 -89.6250 PRYI2 Kishwaukee River near Perryville IL 42.1944 -88.9989 QLDI2 Mississippi River at Quincy IL 39.9039 -91.4292 RABI2 Rock River at Rockford IL 42.2889 -89.0653 RCKI2 Mississippi River at Rock Island IL 41.5178 -90.5619 RIPI2 La Moine River at Ripley IL 40.0247 -90.6317 ROKI2 Rock River at Rockton IL 42.4486 -89.0697 RUSI2 Des Plaines River near Russell IL 42.4892 -87.9264 RVRI2 Des Plaines River at Riverside IL 41.8217 -87.8219 RVTI2 Sangamon River at Riverton IL 39.8431 -89.5472 SEVI2 Spoon River at Seville IL 40.4900 -90.3403 SHLI2 Little Calumet River at South Holland IL 41.6069 -87.5978 SHNI2 Ohio River at Shawneetown IL 37.6919 -88.1333 SIRI2 Pecatonica River near Shirland IL 42.4381 -89.1750 SMLI2 Ohio River at Smithland Dam IL 37.1583 -88.4261 SORI2 Du Page River at Shorewood IL 41.5222 -88.1931 SRDI2 Illinois River at Starved Rock IL 41.3247 -88.9839 STMI2 Embarras River at Ste Marie IL 38.9364 -88.0225 THBI2 Mississippi River at Thebes IL 37.2217 -89.4631 THNI2 Thorn Creek at Thornton IL 41.5683 -87.6078 UINI2 Mississippi River at Quincy IL 39.9322 -91.4161 VALI2 Illinois River at Valley City IL 39.7033 -90.6453 VNDI2 Kaskaskia River at Vandalia IL 38.9597 -89.0889 WLMI2 Kankakee River near Wilmington IL 41.3467 -88.1864 WRNI2 W Br Du Page River near Warrenville IL 41.8175 -88.1714 WYNI2 Skillet Fork River at Wayne City IL 38.3633 -88.5878 ABTI3 East Fork Whitewater River at Abington IN 39.7325 -84.9597 ALPI3 West Fork Of Whitewater River at Alpine IN 39.5794 -85.1581 ANDI3 White River at Anderson IN 40.1056 -85.6711 BAKI3 East Fork White River at Columbus IN 39.2000 -85.9256 BEDI3 East Fork White River near Rivervale IN 38.7703 -86.4097 BFRI3 East Fork White River near Bedford IN 38.8361 -86.5214 BLFI3 Wabash River near Bluffton IN 40.7422 -85.1714 BLRI3 Wabash River near Bluffton IN 40.7422 -85.1714 BOLI3 Eel River at Bowling Green IN 39.3828 -87.0206 BRKI3 Whitewater River at Brookville IN 39.4067 -85.0128 CENI3 White River below Eagle Valley Power Plant IN 39.4858 -86.4189 CLFI3 Ohio River at Clifty Creek IN 38.7367 -85.4181 CLNI3 Wabash River at Clinton IN 39.6564 -87.3961 CNNI3 Ohio River at Cannelton Lock IN 37.8994 -86.7056 CNTI3 White River near Centerton IN 39.4975 -86.4006 CRWI3 Sugar Creek at Crawfordsville IN 40.0489 -86.8994 CVGI3 Wabash River at Covington IN 40.1400 -87.4067 DAVI3 Kankakee River at Davis Route 30 IN 41.4000 -86.7011 DBRI3 Kankakee River at Dunns Bridge IN 41.2200 -86.9683 DCRI3 Saint Marys River near Decatur IN 40.8486 -84.9378 DEPI3 Muscatatuck River near Deputy IN 38.8042 -85.6739 DLPI3 Tippecanoe River near Delphi IN 40.5939 -86.7700 DREI3 Driftwood River at Edinburgh IN 39.3392 -85.9869 EKMI3 Saint Joseph River Michigan at Elkhart IN 41.6917 -85.9750 ELLI3 White River at Elliston IN 39.0275 -86.9669 EVVI3 Ohio River at Evansville IN 37.9722 -87.5764 FRDI3 Blue River at Fredericksburg IN 38.4339 -86.1917 FREI3 White River at Edwardsport IN 38.8067 -87.2461 FSMI3 Iroquois River near Foresman IN 40.8706 -87.3067 FTWI3 Maumee River at Fort Wayne IN 41.0828 -85.1147 GSHI3 Elkhart River at Goshen IN 41.5933 -85.8486 HAZI3 White River at Hazleton IN 38.4897 -87.5458 HDDI3 Hart Ditch at Dyer IN 41.5078 -87.5100 HUFI3 Wabash River at Terre Haute IN 39.4758 -87.4189 INDI3 White River at Indianapolis IN 39.7372 -86.1689 KNXI3 Yellow River at Knox IN 41.3028 -86.6206 KTSI3 Kankakee River near Kouts IN 41.2539 -87.0339 LAFI3 Wabash River at Lafayette IN 40.4219 -86.8972 LCMI3 Little Calumet River at Munster IN 41.5775 -87.5222 LGNI3 Wabash River at Logansport IN 40.7464 -86.3775 LRHI3 Little River above Huntington IN 40.9039 -85.4061 LYNI3 Wabash River near Linn Grove IN 40.6561 -85.0328 MCXI3 Tippecanoe River at Oakdale Dam IN 40.6567 -86.7528 MIEI3 White River at Muncie IN 40.2042 -85.3872 MROI3 Mississinewa River near Marion IN 40.5764 -85.6600 MTVI3 Ohio River at Mount Vernon IN 37.9286 -87.8956 MTZI3 Wabash River at Montezuma IN 39.7925 -87.3739 NBGI3 Ohio River at Newburgh Dam IN 37.9283 -87.3750 NBLI3 White River at Noblesville IN 40.0469 -86.0172 NHRI3 Wabash River at New Harmony IN 38.1319 -87.9403 NMCI3 Eel River at North Manchester IN 40.9939 -85.7814 NORI3 White River near Nora IN 39.9106 -86.1056 NWBI3 White River at Newberry IN 38.9275 -87.0114 NWYI3 Tippecanoe River at Norway Dam IN 40.7803 -86.7600 ORAI3 Tippecanoe River near Ora IN 41.1572 -86.5636 PNTI3 Patoka River near Princeton IN 38.3903 -87.5489 PTRI3 White River at Petersburg IN 38.5108 -87.2894 PYMI3 Yellow River at Plymouth IN 41.3403 -86.3044 ROOI3 Saint Joseph River near Fort Wayne IN 41.1772 -85.0558 RVNI3 White River at Ravenswood IN 39.8933 -86.1294 RVTI3 Wabash River at Riverton IN 39.0203 -87.5686 RZLI3 Iroquois River at Rensselaer IN 40.9333 -87.1289 SASI3 Saint Marys River at Muldoon Bridge IN 40.9878 -85.1119 SBNI3 Saint Joseph River at South Bend IN 41.7203 -86.2692 SBVI3 Big Blue River at Shelbyville IN 39.5292 -85.7819 SERI3 East Fork White River at Seymour IN 38.9825 -85.8992 SHLI3 East Fork White River at Shoals IN 38.6669 -86.7919 SLBI3 Kankakee River at Shelby IN 41.1828 -87.3403 SPNI3 White River at Spencer IN 39.2811 -86.7622 SPYI3 Spy Run Creek at Spy Run IN 41.1047 -85.1578 TELI3 Ohio River at Tell City IN 37.9531 -86.7747 UNWK2 Ohio River at J.T. Myers Dam IN 37.7917 -87.9861 VCNI3 Wabash River at Vincennes IN 38.6817 -87.5353 VRNI3 Muscatatuck River at Vernon IN 38.9761 -85.6203 WABI3 Wabash River at Wabash IN 40.7908 -85.8203 WHLI3 Muscatatuck River at Wheeler Hollow IN 38.7681 -86.1522 WLLI3 East Fork White River at Williams IN 38.8022 -86.6456 WMCI3 Tippecanoe River above Winamac IN 41.0497 -86.5992 WRNI3 Salamonie River below Warren IN 40.7125 -85.4536 ZZZK2 Blue River at Test IN 38.4339 -86.1917 ABIK1 Smoky Hill River near Abilene Sand Spring KS 38.9064 -97.2842 ADAK1 Salt Creek near Ada KS 39.1392 -97.8367 AERK1 Walnut Creek near Alexander KS 38.4647 -99.6222 AGAK1 Walnut River at Augusta KS 37.6706 -96.9800 AGSK1 Whitewater River near Augusta KS 37.6797 -96.9961 ALBK1 Walnut Creek at Albert KS 38.4617 -99.0144 ALEK1 Mud Creek near Abilene KS 38.9297 -97.2278 ALMK1 Little Arkansas River at Alta Mills KS 38.1122 -97.5919 AMCK1 Neosho River near Americus KS 38.4669 -96.2503 ARCK1 Arkansas River at Arkansas City KS 37.0564 -97.0578 ARKK1 Walnut River near Arkansas City KS 37.0564 -97.0250 ARNK1 Smoky Hill River near Arnold KS 38.8075 -100.0222 ATCK1 Missouri River at Atchison KS 39.5603 -95.1136 ATOK1 Verdigris River at Altoona KS 37.5297 -95.6744 BARK1 Little Blue River above Barnes KS 39.7758 -96.8581 BETK1 Buckner Creek near Burdett KS 38.1628 -99.6428 BLPK1 Ninnescah River near Belle Plaine KS 37.3917 -97.3392 BLRK1 Big Blue River near Blue Rapids KS 39.6872 -96.6397 BLTK1 Solomon River at Beloit KS 39.4531 -98.1144 BRLK1 Neosho River at Burlington KS 38.1944 -95.7350 BRNK1 Salt Creek at Barnard KS 39.1903 -98.0397 BTTK1 Pawnee River near Burdett KS 38.2067 -99.6433 BVUK1 Kansas River near Belvue KS 39.1931 -96.1472 BXTK1 Spring River above Baxter Springs KS 37.0236 -94.7208 CBNK1 Chikaskia River near Corbin KS 37.1292 -97.6017 CDBK1 Beaver Creek at Cedar Bluffs KS 39.9850 -100.5597 CFVK1 Verdigris River at Coffeyville KS 37.0614 -95.6347 CHPK1 Chapman Creek near Chapman KS 39.0311 -97.0400 CLDK1 Elk Creek at Clyde KS 39.5911 -97.3908 CNKK1 Republican River at Concordia KS 39.5886 -97.6581 CNUK1 Neosho River near Chanute KS 37.7303 -95.4406 COOK1 Arkansas River at Coolidge KS 38.0275 -102.0114 COWK1 Cowskin Creek at Wichita KS 37.7017 -97.4806 CTWK1 Cottonwood River at Cottonwood Falls KS 38.3756 -96.5419 CYCK1 Republican River at Clay Center KS 39.3556 -97.1272 DDCK1 Arkansas River at Dodge City KS 37.7444 -100.0328 DELK1 Soldier Creek near Delia KS 39.2383 -95.8883 DRBK1 Arkansas River at Derby KS 37.5442 -97.2753 DSOK1 Kansas River at De Soto KS 38.9833 -94.9644 EDEK1 Walnut River near El Dorado KS 37.8169 -96.8394 EDWK1 West Branch Walnut River at El Dorado KS 37.8267 -96.8492 ELLK1 Big Creek at Ellis KS 38.9369 -99.5636 ELWK1 Smoky Hill River at Ellsworth KS 38.7267 -98.2333 EMPK1 Cottonwood River near Emporia KS 38.3861 -96.1817 ENTK1 Smoky Hill River near Enterprise KS 38.9064 -97.1175 ENWK1 Crooked Creek near Englewood KS 37.0325 -100.2111 EPRK1 Neosho River near Emporia KS 38.4356 -96.2092 EREK1 Neosho River near Erie KS 37.5494 -95.2644 ESTK1 Stranger Creek at Easton KS 39.3450 -95.1081 FKFK1 Black Vermillion River at Frankfort KS 39.6819 -96.4425 FLRK1 Cottonwood River near Florence KS 38.2361 -96.8769 FRGO2 Cimarron River near Forgan KS 37.0111 -100.4914 FRNK1 Fall River at Fredonia KS 37.5083 -95.8333 FSKK1 Marmaton River at Fort Scott KS 37.8489 -94.7025 FTNK1 Little Osage River at Fulton KS 38.0089 -94.7039 FTRK1 Kansas River at Ft Riley KS 39.0617 -96.7661 GCKK1 Arkansas River at Garden City KS 37.9558 -100.8769 GDEK1 North Fork Solomon near Glade KS 39.6731 -99.3092 GLAK1 Solomon River near Glasco KS 39.3386 -97.8358 GOVK1 Hackberry Creek at Gove KS 38.9536 -100.4878 GTBK1 Arkansas River at Great Bend KS 38.3531 -98.7647 GYSK1 Gypsum Creek near Gypsum KS 38.6528 -97.4197 HAVK1 Arkansas River near Haven KS 37.9464 -97.7747 HBGK1 Little Blue River near Hollenberg KS 39.9803 -97.0047 HCHK1 Arkansas River at Hutchinson KS 38.0381 -97.9336 HDYN1 Republican River near Hardy KS 39.9925 -97.9314 HTDK1 Little Arkansas River near Halstead KS 38.0286 -97.5403 HYSK1 Big Creek near Hays KS 38.8522 -99.3181 IDPK1 Verdigris River at Independence KS 37.2236 -95.6775 IOLK1 Neosho River at Iola KS 37.9222 -95.4275 JMSK1 Buffalo Creek near Jamestown KS 39.6147 -97.8564 JUCK1 Smoky Hill River near Junction City KS 38.9789 -96.8572 KCKK1 Kansas River at 23Rd Street KS 39.0900 -94.6089 KIOK1 Medicine Lodge River near Kiowa KS 37.0386 -98.4703 KNSK1 Arkansas River at Kinsley KS 37.9258 -99.3753 LAWK1 Wakarusa River near Lawrence KS 38.9114 -95.2608 LCGK1 Marais Des Cygnes River at La Cygne KS 38.3453 -94.7719 LCPK1 Kansas River at Lecompton KS 39.0511 -95.3861 LDLK1 Beaver Creek near Ludell KS 39.8481 -100.9611 LEVK1 Missouri River at Leavenworth KS 39.3269 -94.9094 LINK1 Saline River near Lincoln KS 39.0278 -98.1503 LISK1 Rock Creek near Louisville KS 39.2492 -96.3147 LNDK1 Salt Creek near Lyndon KS 38.6014 -95.6844 LNEK1 Pottawatomie Creek at Lane KS 38.4436 -95.0839 LNRK1 North Fork Solomon R at Lenora KS 39.6153 -100.0017 LNSK1 Smoky Hill River at Lindsborg KS 38.5661 -97.6728 LOUK1 Vermillion Creek near Louisville KS 39.2911 -96.2303 LRYK1 Neosho River at Leroy KS 38.0769 -95.6342 LWRK1 Kansas River at Lawrence KS 38.9742 -95.2358 LYNK1 Cow Creek near Lyons KS 38.3083 -98.1931 MACK1 Rattlesnake Creek near Macksville KS 37.8714 -98.8758 MDKK1 Ninnescah South Fork near Murdock KS 37.5617 -97.8531 MHKK1 Kansas River at Manhattan KS 39.1747 -96.5544 MPSK1 Solomon River at Minneapolis KS 39.1203 -97.7111 MRYK1 Big Blue River near Marysville KS 39.8419 -96.6619 MSCK1 Delaware River near Muscotah KS 39.5214 -95.5325 MTRK1 Smoky Hill River near Mentor KS 38.7111 -97.5714 MULK1 Arkansas River near Mulvane KS 37.4753 -97.2611 MWCK1 Wildcat Creek at Manhattan Scenic Drive KS 39.1883 -96.6425 NCMK1 Smoky Hill River at New Cambria KS 38.8639 -97.4831 NCRK1 Sappa Creek near Norcatur KS 40.0000 -99.9928 NEOK1 Neosho River near Neosho Rapids KS 38.3681 -96.0000 NLSK1 Solomon River near Niles KS 38.9692 -97.4769 OBNK1 Sappa Creek at Oberlin KS 39.8128 -100.5339 OKYK1 Smoky Hill River near Oakley KS 38.7947 -100.8581 OPDK1 Indian Creek at Overland Park KS 38.9408 -94.6711 OSBK1 South Fork Solomon near Osborne KS 39.4278 -98.6939 OSMK1 Marais Des Cygnes River at Osawatomie KS 38.5033 -94.9600 OSWK1 Neosho River near Oswego KS 37.1767 -95.1050 OTWK1 Marais Des Cygnes River at Ottawa KS 38.6181 -95.2681 OXFK1 Arkansas River at Oxford KS 37.2744 -97.1622 PECK1 Ninnescah River near Peck KS 37.4569 -97.4236 PLYK1 Cottonwood River near Plymouth KS 38.3975 -96.3564 PPFK1 Neosho River near Parsons KS 37.3400 -95.1097 PTIK1 North Fork Solomon near Portis KS 39.5550 -98.6919 PXCK1 Mill Creek near Paxico KS 39.0647 -96.1689 QNMK1 Marais Des Cygnes River near Quenemo KS 38.5469 -95.5272 RCNK1 Walnut Creek near Nekoma KS 38.4772 -99.4378 RDNK1 Marais Des Cygnes River above Reading KS 38.5669 -95.9614 RDPK1 Fancy Creek near Randolph KS 39.4722 -96.8322 RSLK1 Smoky Hill River near Russell KS 38.7767 -98.8544 RSSK1 Cross Creek near Rossville KS 39.1389 -95.9542 RUSK1 Saline River near Russell KS 38.9658 -98.8542 SANK1 Pawnee River near Sanford KS 38.1894 -99.3311 SCSK1 Smoky Hill River below Schoenchen KS 38.7131 -99.2925 SEDK1 Little Arkansas River near Sedgwick KS 37.8831 -97.4242 SGBK1 Shunganunga Creek at Topeka KS 39.0175 -95.7250 SIPK1 Pottawatomie Creek near Scipio KS 38.3489 -95.2033 SKTK1 Bow Creek near Stockton KS 39.5594 -99.2856 SLNK1 Mulberry Creek near Salina KS 38.8444 -97.6681 SNCK1 Turkey Creek near Seneca KS 39.9478 -96.1083 SNDK1 Republican River near Scandia KS 39.7986 -97.7906 STAK1 Blue River near Stanley KS 38.8125 -94.6756 SYRK1 Arkansas River at Syracuse KS 37.9667 -101.7564 TNGK1 Stranger Creek near Tonganoxie KS 39.1164 -95.0108 TNRK1 Kansas River at Turner Bridge KS 39.0933 -94.7103 TOPK1 Soldier Creek near Topeka KS 39.0994 -95.7247 TOWK1 Whitewater River at Towanda KS 37.7961 -97.0142 TPAK1 Kansas River at Topeka KS 39.0667 -95.6494 TPOK1 Marais Des Cygnes River near Trading Post KS 38.2186 -94.6128 TPOK1A Marais Des Cygnes River near Trading Post KS 36.4208 -94.5028 TSCK1 Saline River at Tescott KS 39.0039 -97.8736 TSHK1 Shunganunga Creek at Topeka KS 39.0297 -95.6856 TURK1 Turkey Creek at Southwest Boulevard KS 39.0589 -94.6261 WAAK1 Saline River near Wakeeney KS 39.1061 -99.8694 WDBK1 Lyon Creek above Woodbine KS 38.8847 -96.9100 WDRK1 Prairie Dog Creek near Woodruff KS 39.9786 -99.4783 WFDK1 Walnut River at Winfield KS 37.2239 -96.9958 WMGK1 Kansas River at Wamego KS 39.1983 -96.3053 WODK1 South Fork Solomon River near Woodston KS 39.4397 -99.1014 WRWK1 Wakarusa River at Wakarusa KS 38.8817 -95.6969 WSHK1 Mill Creek at Washington KS 39.8136 -97.0372 ZENK1 Rattlesnake Creek near Zenith KS 38.0933 -98.5458 ALVK2 Drakes Creek near Alvaton KY 36.8953 -86.3806 ASHK2 Ohio River at Ashland KY 38.4814 -82.6375 BBVK2 Cumberland River at Barbourville KY 36.8628 -83.8875 BLSK2 Licking River at Blue Licks Spring KY 38.4200 -83.9975 BOOK2 South Fork Kentucky River at Booneville KY 37.4800 -83.6753 BRNK2 Green River at Brownsville KY 37.2069 -86.2611 BSNK2 Rolling Fork River near Boston KY 37.7672 -85.7039 BUCK2 Middle Fork at Buckhorn Lake KY 37.3333 -83.4667 BWGK2 Barren River at Bowling Green KY 37.0011 -86.4308 BXTK2 Cumberland River at Baxter KY 36.8606 -83.3269 CALK2 Green River at Calhoun KY 37.5339 -87.2639 CBNK2 Laurel River at Corbin Dam KY 36.9667 -84.1167 CCLK2 Martins Fork at Cranks Creek Lake KY 36.7333 -83.2333 CFLK2 Carr Creek at Carr Creek Lake KY 37.2333 -83.0333 CMBK2 Cumberland River at Cumberland KY 36.9739 -82.9931 CRLK2 Licking River at Cave Run Lake KY 38.1153 -83.5433 CYCK2 Red River at Clay City KY 37.8647 -83.9336 CYNK2 South Fork Licking River at Cynthiana KY 38.3908 -84.3031 DUNK2 Rough River near Dundee KY 37.5475 -86.7217 DWYK2 Johns Creek at Dewey Lake KY 37.7333 -83.2333 ELKK2 Russell Fork Big Sandy River at Elkhorn City KY 37.3039 -82.3431 FFTK2 Kentucky River at Frankfort Lock KY 38.2017 -84.8817 FLMK2 Licking River at Falmouth KY 38.6778 -84.3281 FLRK2 Big Sandy River at Fullers Station KY 38.1711 -82.6347 FODK2 Kentucky River at Ford Lock KY 37.8947 -84.2622 FTLK2 Levisa Fork at Fishtrap Lake KY 37.4333 -82.4167 GNUK2 Ohio River at Greenup Lock KY 38.6500 -82.8667 GYNK2 Little Sandy River at Grayson KY 38.3292 -82.9372 HAZK2 North Fork Kentucky River at Hazard KY 37.2467 -83.1819 HIBK2 Kentucky River at High Bridge Lock KY 37.8292 -84.7239 HLBK2 South Fork Little River near Hopkinsville - Bypass KY 36.8494 -87.4289 HLDK2 Kentucky River at Heidelberg KY 37.5531 -83.7692 JKNK2 North Fork Kentucky River at Jackson KY 37.5522 -83.3858 MFVK2 Green River at Munfordville KY 37.2681 -85.8861 MKBK2 Licking River near Mckinneysburg KY 38.5994 -84.2672 MKLK2 Ohio River at Markland Dam KY 38.7747 -84.9647 MLPK2 Ohio River at Mcalpine Lower KY 38.2803 -85.7992 MLUK2 Ohio River at Mcalpine Upper KY 38.2625 -85.7519 MRHK2 Triplett Creek at Morehead KY 38.1844 -82.4300 MYVK2 Ohio River at Maysville KY 38.6486 -83.7636 ODAK2 South Fork Kentucky River at Oneida KY 37.2683 -83.6514 OWBK2 Ohio River at Owensboro KY 37.7939 -87.1414 PAHK2 Ohio River at Paducah KY 37.0894 -88.5944 PKYK2 Levisa Fork Big Sandy River at Pikeville KY 37.4642 -82.5264 PNTK2 Paint Creek at Paintsville Lake KY 37.8167 -82.7833 PRDK2 Green River at Paradise KY 37.2639 -86.9778 PRSK2 Stoner Creek at Paris KY 38.2047 -84.2392 PSTK2 Levisa Fork Big Sandy River at Prestonsburg KY 37.6708 -82.7772 PTVK2 Levisa Fork Big Sandy River at Paintsville KY 37.8172 -82.7911 PVLK2 Cumberland River at Pineville KY 36.7639 -83.6928 RAVK2 Kentucky River near Ravenna KY 37.6783 -83.9483 RCHK2 Green River at Rochester KY 37.2164 -86.8939 SAYK2 Licking River near Salyersville KY 37.7306 -83.0581 SHPK2 Salt River at Shepherdsville KY 37.9850 -85.7175 WDBK2 Green River at Woodbury KY 37.1822 -86.6300 WHTK2 Kentucky River at Whitesburg KY 37.1175 -82.8247 WLBK2 Cumberland River at Williamsburg KY 36.7436 -84.1561 ACML1 Black River at Acme LA 31.2678 -91.8308 AEXL1 Red River near Alexandria LA 31.3089 -92.4392 ALGL1 Boeuf River near Alto LA 32.3739 -91.8808 AMIL1 Tangipahoa River near Amite LA 30.7289 -90.4842 BKDL1 Bundick Creek at Bundick Lake LA 30.7267 -93.0950 BLRL1 Atchafalaya River above Butte La Rose LA 30.2814 -91.6867 BMPL1 Bayou Manchac near Little Prairie LA 30.3403 -90.9172 BNTL1 Cypress Bayou near Cypress Bayou Lake LA 32.6519 -93.6697 BSHL1 Bogue Chitto River near Bush LA 30.6292 -89.8972 BSLL1 Bayou Nezpique near Basile LA 30.4806 -92.6317 BSRL1 Intracoastal Waterway at Bayou Sorrel Lock LA 30.1300 -91.3225 BTRL1 Mississippi River at Baton Rouge LA 30.4292 -91.2069 BXAL1 Pearl River near Bogalusa LA 30.7931 -89.8208 BYML1 Amite River at Bayou Manchac Point LA 30.3453 -90.8972 CGSL1 Bogue Falaya River at Camp Covington LA 30.5567 -90.1461 CLAL1 Black Lake Bayou at Clarence LA 31.8733 -92.9667 CLRL1 Bogue Falaya River at Covington LA 30.6661 -91.0844 CMTL1 Comite River at Comite Joor Rd LA 30.5125 -91.0736 COGL1 Bayou Macon near Como LA 32.0922 -91.5925 COLL1 Ouachita River at Columbia LA 32.1667 -92.1125 CRLL1 Cross Bayou at Cross Lake LA 32.5131 -93.7967 CSHL1 Red River at Coushatta LA 32.0128 -93.3531 CUSL1 Tchefuncte River near Covington LA 30.4944 -90.1694 CVEL1 Bogue Falaya River at Covington LA 30.4764 -90.0894 CYNL1 Tensas River at Clayton LA 31.7247 -91.5444 DARL1 Amite River near Darlington LA 30.8889 -90.8444 DENL1 Amite River at Denham Springs LA 30.4639 -90.9903 DONL1 Mississippi River at Donaldsonville LA 30.1028 -90.9592 EALL1 Lake Pontchartrain unk East Lake LA 30.1728 -89.7425 FLSL1 Tchefuncte River near Folsom LA 30.6158 -90.2486 FRNL1 Bogue Chitto River at Franklinton LA 30.8428 -90.1619 FSLL1 Amite River at French Settlement LA 30.2753 -90.7819 GLML1 Calcasieu River near Glenmora LA 30.9958 -92.6736 GNDL1 Atchafalaya River at Myette Point LA 29.8925 -91.4456 GREL1 Red River at Grand Ecore LA 31.8081 -93.0867 GVLL1 Amite River near Grangeville LA 30.7361 -90.8417 HOLL1 Tickfaw River near Holden LA 30.5042 -90.6778 JNEL1 Black River at Jonesville L&D LA 31.4825 -91.8592 KDRL1 Calcasieu River near Kinder LA 30.5025 -92.9156 KENL1 Tangipahoa River near Kentwood LA 30.9375 -90.4903 KILL1 Tickfaw River above Killian LA 30.3728 -90.5506 KRZL1 Atchafalaya River at Krotz Springs LA 30.5353 -91.7467 LBBL1 Bodcau Bayou at Bayou Bodcau Lake LA 32.7036 -93.5119 LBUL1 Bayou Dorcheat at Lake Bistineau LA 32.3294 -93.4361 LCAL1 Bayou D'Arbonne at Lake Claiborne LA 32.7389 -92.9050 LCHL1 Calcasieu River near Salt Water Barrier LA 30.2536 -93.2181 LCOL1 Big Cypress Bayou at Caddo Lake LA 32.6978 -93.9578 LCRL1 West Fork Of The Calcasieu River at Sam Houston Jones State Park LA 30.2942 -93.2628 LDBL1 Bayou D'Arbonne at Lake D'Arbonne LA 32.7133 -92.3408 LKCL1 Calcasieu River at Port Of Lch LA 30.2181 -93.2533 LPOL1 Tickfaw River at Liverpool LA 30.9306 -90.6733 LPTL1 Sabine River at Logansport LA 31.9722 -94.0061 MAGL1 Amite River near Magnolia LA 30.5347 -90.9806 MAUL1 Amite River at Maurepas LA 30.3092 -90.6103 MCGL1 Atchafalaya River at Morgan City LA 29.6964 -91.2108 MDLL1 Lake Pontchartrain at Mid Lake LA 30.1486 -90.1328 MDVL1 Lake Pontchartrain at Mandeville LA 30.3625 -90.0933 MLUL1 Ouachita River at Monroe LA 32.5003 -92.1197 MLVL1 Atchafalaya River near Melville LA 30.6906 -91.7361 MNEL1 Bayou Dorcheat at Dixie Inn LA 32.5986 -93.3331 MONL1 Tickfaw River near Montpelier LA 30.6861 -90.6431 MRML1 Mermentau River near Mermentau LA 30.1900 -92.5906 MTTL1 Whisky Chitto Creek near Mittie LA 30.6986 -92.8939 NECL1 Boeuf River near Fort Necessity LA 32.0708 -91.9281 NLGL1 Tensas River near Newlight LA 32.0892 -91.4897 NORL1 Mississippi River at New Orleans LA 29.9347 -90.1361 NRAL1 Natalbany River near Amite LA 30.7125 -90.5739 NRBL1 Natalbany River near Baptist LA 30.5042 -90.5458 OBCL1 Calcasieu River near Oberlin LA 30.6397 -92.8144 OKDL1 Calcasieu River near Oakdale LA 30.8225 -92.6850 OLVL1 Comite River near Olive Branch LA 30.7558 -91.0272 OTBL1 Calcasieu River at Old Town Bay LA 30.2903 -93.1447 PERL1 Pearl River near Pearl River LA 30.3850 -89.7367 PSTL1 Gulf Of Mexico at Sw Pass Pilot Station LA 28.9319 -89.4069 PVLL1 Amite River at Port Vincent LA 30.3325 -90.8519 RHLL1 Little River Of Louisiana near Rochelle LA 31.7542 -92.3444 RIGL1 Lake Pontchartrain at Rigolets LA 30.1672 -89.7369 ROBL1 Tangipahoa River near Robert LA 30.5064 -90.3617 RPIL1 Bayou Anacoco near Rosepine LA 30.9528 -93.3528 RRBL1 Red River at Red River Lock 2 LA 31.1872 -92.2931 RRLL1 Mississippi River at Red River Landing LA 30.9608 -91.6644 RRVL1 Mississippi River at Reserve LA 30.0556 -90.5686 SHBL1 Gulf Of Mexico at Shell Beach LA 29.8681 -89.6731 SLGL1 Red Chute Bayou at Sligo LA 32.4472 -93.5944 SMML1 Atchafalaya River at Simmesport LA 30.9825 -91.7983 SPHL1 Bayou Dorcheat near Springhill LA 32.9944 -93.3964 SVPL1 Red River at Shreveport LA 32.5153 -93.7403 TDGL1 Tensas River at Tendal LA 32.4319 -91.3667 TEST9 Test River near Test Site LA 30.0000 -93.0000 VLSL1 Vermilion River at Lafayette LA 30.2172 -91.9925 WAGL1 Cypress Bayou at Wallace Lake LA 32.3192 -93.6703 WEGL1 Lake Pontchartrain at West End LA 30.0217 -90.1158 WSLL1 Lake Pontchartrain at West Lake LA 30.1061 -90.4214 BDGM3 Taunton River near Bridgewater MA 41.9339 -70.9569 CTVM3 Eb Housatonic at Coltsville MA 42.4694 -73.1969 DNSM3 Nashua River at East Pepperell MA 42.6675 -71.5756 DOVM3 Charles River at Dover MA 42.2561 -71.2606 FBGM3 North Nashua River at Fitchburg MA 42.5761 -71.7886 GBGM3 Green River at Gt Barrington MA 42.1919 -73.3911 GTBM3 Housatonic River at Gt Barrington MA 42.2319 -73.3553 HLUM3 Connecticut River below Holyoke Dam MA 42.2139 -72.6028 HLYM3 Connecticut River below Holyoke MA 42.1906 -72.6089 HVRM3 Merrimack River at Haverhill MA 42.7728 -71.0831 INDM3 Chicopee River near Indian Orchard MA 42.1606 -72.5144 LCNM3 Concord River at Lowell MA 42.6367 -71.3025 LOWM3 Merrimack River at Lowell MA 42.6458 -71.2989 LWMM3 Merrimack River at Lawrence MA 42.7056 -71.1528 MAYM3 Assabet River at Maynard MA 42.4319 -71.4503 MNTM3 Connecticut River at Montague MA 42.5786 -72.5750 NBRM3 Blackstone River at Northbridge MA 42.1536 -71.6525 NBSM3 West Br Farmington at New Boston MA 42.0792 -73.0733 NHMM3 Connecticut River at Northampton MA 42.3108 -72.6219 NRWM3 Neponset River at Norwood MA 42.1775 -71.2014 SAXM3 Sudbury River at Saxonville MA 42.3253 -71.3981 SPGM3 Connecticut River at Springfield MA 42.0964 -72.5947 WGTM3 Squannacook River at West Groton MA 42.6342 -71.6583 WILM3 Hoosic River at Williamstown MA 42.7003 -73.1594 WLMM3 Shawsheen River near Wilmington MA 42.5681 -71.2153 WSFM3 Westfield River at Westfield MA 42.1067 -72.6994 BRKM2 Potomac River near Little Falls MD 38.9497 -77.1278 CBEM2 North Branch Potomac River near Cumberland MD 39.6219 -78.7733 CNWM2 Susquehanna River below Conowingo Dam MD 39.6578 -76.1744 CWCM2 Wills Creek near Cumberland MD 39.6697 -78.7881 DAWM2 Seneca Creek at Dawsonville MD 39.1281 -77.3358 FAVM2 Conococheague Creek at Fairview MD 39.7164 -77.8247 FDKM2 Monocacy River near Frederick MD 39.4028 -77.3661 HNKM2 Potomac River at Hancock MD 39.6975 -78.1778 KITM2 North Branch Potomac River at Kitzmiller MD 39.3939 -79.1817 LUKM2 North Branch Potomac River at Luke MD 39.4789 -79.0639 PAWW2 Potomac River at Paw Paw MD 39.5389 -78.4564 PORM2 Potomac River at Point Of Rocks MD 39.2736 -77.5431 SACM2 Antietam Creek near Sharpsburg MD 39.4497 -77.7303 WLLM2 Potomac River at Williamsport MD 39.6092 -77.8475 WSTM2 Georges Creek at Westernport MD 39.4939 -79.0447 ALLM1 Allagash River above Allagash ME 47.0697 -69.0794 ASTM1 Kennebec River at Augusta ME 44.3183 -69.7714 AUBM1 Androscoggin River near Auburn ME 44.0722 -70.2086 BBRM1 Big Black River near Big Black ME 46.8939 -69.7522 BLAM1 Piscataquis River at Blanchard ME 45.2672 -69.5839 DICM1 St John River at Dickey ME 47.1131 -69.0881 DOVM1 Piscataquis River above Dover-Foxcroft ME 45.1750 -69.3147 EDDM1 Penobscot River at Eddington ME 44.8267 -68.6967 FIHM1 Fish River above Fish ME 47.2375 -68.5828 FTKM1 St John River at Fort Kent ME 47.2833 -68.5853 GRNM1 East Branch Penobscot River above Grindstone ME 45.7303 -68.5894 MASM1 Aroostook River below Masardis ME 46.5231 -68.3717 MATM1 Mattawamkeag River at Mattawamkeag ME 45.5011 -68.3058 MERM1 Sandy River at Mercer ME 44.7072 -69.9392 MFDM1 Piscataquis River at Medford ME 45.2606 -68.8686 NANM1 Carrabassett River at North Anson ME 44.8692 -69.9556 NINM1 St John River at Nine Mile Bridge ME 46.7006 -69.7156 PITM1 Sebasticook River at Pittsfield ME 44.7167 -69.4139 RMFM1 Androscoggin River at Rumford ME 44.5511 -70.5439 ROXM1 Swift River at Roxbury ME 44.6422 -70.5881 SIDM1 Kennebec River at North Sidney ME 44.4736 -69.6856 SKOM1 Kennebec River at Skowhegan ME 44.7667 -69.7167 STFB3 St Francis River above St Francis ME 47.2069 -68.9569 WBKM1 Presumpscot River at Westbrook ME 43.6869 -70.3469 WBXM1 Saco River at West Buxton ME 43.6667 -70.6031 WENM1 Penobscot River at West Enfield ME 45.2361 -68.6514 WSHM1 Aroostook River at Washburn ME 46.7772 -68.1572 ADAM4 Grand River at Ada MI 42.9553 -85.4764 ADRM4 River Raisin near Adrian MI 41.9042 -83.9806 AHCM4 Clinton River at Auburn Heights MI 42.6333 -83.2244 ALMM4 Pine River at Alma MI 43.3794 -84.6556 ALSM4 Sturgeon River near Alston MI 46.7264 -88.6619 ANNM4 Huron River at Ann Arbor MI 42.2875 -83.7333 ATRM4 Au Train River at Forest Lake MI 46.3408 -86.8500 AULM4 Au Train River at Au Train MI 46.4311 -86.8350 AUTM4 Au Train River near Au Train MI 46.4125 -86.8417 AVOM4 Mill Creek near Avoca MI 43.0544 -82.7347 BANM4 Menominee River near White Rapids MI 45.4819 -87.8022 BCRM4 Battle Creek at Battle Creek MI 42.3314 -85.1536 BESM4 Black River near Bessemer MI 46.5114 -90.0744 BFCM4 Ontonagon River near Paulding MI 46.3992 -89.1464 BGLM4 West Branch Ontonagon River near Bergland MI 46.5875 -89.5417 BHRM4 Rouge River at Birmingham MI 42.5458 -83.2236 BLIM4 River Raisin at Blissfield MI 41.8333 -83.8667 BNGM4 Michigamme River near Republic MI 46.3586 -87.9758 BTCM4 Kalamazoo River at Battle Creek MI 42.3239 -85.1975 BURM4 St Joseph River at Burlington MI 42.1031 -85.0800 CHPM4 Peshekee River near Champion MI 46.5569 -88.0025 CHSM4 Shiawassee River at Chesaning MI 43.1833 -84.1153 CLDM4 Thornapple River near Caledonia MI 42.8111 -85.4833 CLLM4 Sturgeon River near Chassell MI 46.9975 -88.5092 CMPM4 Grand River near Comstock Park MI 43.0472 -85.6475 CMSM4 Kalamazoo River at Comstock MI 42.2856 -85.5139 COLM4 S. Br. Flint River near Columbiaville MI 43.1594 -83.3508 CRFM4 Michigamme River near Crystal Falls MI 46.1139 -88.2158 CRNM4 Escanaba River near Cornell MI 45.9086 -87.2136 CROM4 Muskegon River near Croton MI 43.4347 -85.6653 CRYM4 Paint River at Crystal Falls MI 46.1058 -88.3347 CSHM4 Clinton River at Sterling Heights MI 42.6144 -83.0267 CSPM4 Iron River near Caspian MI 46.0586 -88.6272 CSSM4 Cass River near Cass City MI 43.5842 -83.1761 CYFM4 Michigamme River at Way Dam MI 46.2011 -88.1528 DAVM4 Kearsley Creek near Davison MI 43.0336 -83.5814 DETM4 Rouge River at Detroit MI 42.3722 -83.2556 DEXM4 Mill Creek near Dexter MI 42.3000 -83.8986 DHEM4 Ecorse Creek at Dearborn Heights MI 42.2694 -83.2897 DMDM4 Grand River at Dimondale MI 42.6444 -84.6503 DNDM4 River Raisin at Dundee MI 41.9561 -83.6586 EAGM4 Looking Glass River near Eagle MI 42.8281 -84.7594 EASM4 Grand River near Eastmanville MI 43.0242 -86.0264 EATM4 Grand River below Eaton Rapids MI 42.5347 -84.6231 ELNM4 Red Cedar River at East Lansing MI 42.7278 -84.4778 ESNM4 Escanaba River near St Nicholas MI 45.9792 -87.2703 ESTM4 East Branch Salmon Trout River near Big Bay MI 46.7858 -87.8522 ETNM4 Grand River at Eaton Rapids MI 42.5128 -84.6542 EVRM4 Muskegon River at Evart MI 43.8992 -85.2553 EWNM4 South Branch Ontonagon River near Ewen MI 46.5350 -89.2767 FGOM4 Black River near Jeddo MI 43.1525 -82.6242 FLSM4 Swartz Creek near Flint MI 42.9878 -83.7325 FLTM4 Flint River near Flint MI 43.0389 -83.7717 FOSM4 Flint River near Fosters MI 43.3083 -83.9536 FRDM4 Ford River near Hyde MI 45.7550 -87.2019 FRGM4 Shiawassee River near Fergus MI 43.2547 -84.1056 FRMM4 Farmers Creek near Lapeer MI 43.0447 -83.3372 FRNM4 Cass River at Frankenmuth MI 43.3278 -83.7481 FSRM4 Clinton River near Clinton Township MI 42.5772 -82.9514 FTCM4 Thread Creek near Flint MI 42.9750 -83.6358 GACM4 Middle Rouge River near Garden City MI 42.3486 -83.3125 GDLM4 Grand River at Grand Ledge MI 42.7556 -84.7464 GDRM4 Grand River at Grand Rapids MI 42.9644 -85.6764 GNNM4 East Branch Escanaba River at Gwinn MI 46.2778 -87.4361 GPEM4 River Raisin at Grape MI 41.9606 -83.5311 GWDM4 Escanaba River near Greenwood Diversion near Greenwood MI 46.4344 -87.7694 GWRM4 Escanaba River near Greenwood Release near Greenwood MI 46.4394 -87.7978 HHTM4 Sycamore Creek at Holt MI 42.6403 -84.4828 HMGM4 Huron River near Hamburg MI 42.4653 -83.8000 HOPM4 Rabbit River near Hopkins MI 42.6422 -85.7219 HRVM4 Chocolay River near Harvey MI 46.4892 -87.3311 HSTM4 Thornapple River above Hastings MI 42.6158 -85.2364 HUMM4 Middle Branch Escanaba River at Humboldt MI 46.4992 -87.8864 INKM4 Lower Rouge River at Inkster MI 42.3000 -83.3000 IONM4 Grand River at Ionia MI 42.9719 -85.0692 JACM4 Grand River at Jackson MI 42.2836 -84.4089 KOSM4 Menominee River near Koss MI 45.3872 -87.7019 KTLM4 Huron River/Kent Lake at Kent Lake MI 42.5125 -83.6761 LGOM4 Ontonagon River near Bergland MI 46.5886 -89.5478 LNSM4 Grand River at Lansing MI 42.7506 -84.5553 LRWM4 Lower Rouge River at Wayne MI 42.2844 -83.4275 LWLM4 Grand River at Lowell MI 42.9250 -85.3428 MARM4 Kalamazoo River at Marshall MI 42.2647 -84.9639 MCCM4 Dead River near Mcclure Release MI 46.5719 -87.4764 MCHM4 River Raisin near Manchester MI 42.1686 -84.0756 MCLM4 North Branch Clinton near Mt Clemens MI 42.6292 -82.8903 MCRM4 Chippewa River near Midland MI 43.5944 -84.3694 MCWM4 Middle Branch Clinton at Waldenburg MI 42.6428 -82.9333 MFHM4 Huron River near Milford MI 42.5789 -83.6267 MGOM4 Kalamazoo River near Marengo MI 42.2617 -84.8558 MIDM4 Tittabawassee River at Midland MI 43.5953 -84.2356 MONM4 River Raisin at Monroe City MI 41.9133 -83.3850 MORM4 Little Muskegon River above Morley MI 43.5025 -85.3425 MOTM4 Saint Joseph River at Mottville MI 41.8008 -85.7561 MPRM4 Pine River near Midland MI 43.5644 -84.3692 MPTM4 Chippewa River below Mt Pleasant MI 43.6256 -84.7078 MRPM4 Maple River at Maple Rapids MI 43.1097 -84.6931 MSCM4 Snake Creek at Cresent Dr MI 43.6378 -84.2392 MSMM4 Snake Creek at Midland MI 43.6236 -84.2567 MSPM4 Sturgeon Creek at Sturgeon Creek MI 43.6411 -84.2664 MSQM4 Manistique River near Manistique MI 46.0306 -86.1611 MTCM4 Clinton River at Mt. Clemens MI 42.5958 -82.9097 MYFM4 Boardman River near Mayfield--Brown Bridge Rd MI 44.6567 -85.4367 NBRM4 Salt River near North Bradley MI 43.7061 -84.4719 NHHM4 Huron River near New Hudson MI 42.5125 -83.6764 NILM4 Saint Joseph River Michigan at Niles MI 41.8292 -86.2597 NJNM4 Sturgeon River near Nahma Junction MI 45.9431 -86.7056 OKGM4 Little Muskegon River near Oak Grove MI 43.4308 -85.5956 ORCM4 Cisco Branch Ontonagon near Cisco Lake Outlet MI 46.2533 -89.4514 OTSM4 Flint River at Otisville MI 43.1111 -83.5194 OWOM4 Shiawassee River at Owosso MI 43.0150 -84.1811 PAUM4 Middle Branch Ontonagon River near Paulding MI 46.3569 -89.0767 PORM4 Grand River at Portland MI 42.8564 -84.9122 RBNM4 Grand River at Robinson Township MI 43.0400 -86.0811 RCLM4 Middle Branch Ontonagon River near Rockland MI 46.6992 -89.1600 RCMM4 Kalamazoo River near New Richmond MI 42.6508 -86.1067 RDOM4 Au Sable River near Red Oak MI 44.6769 -84.2925 RKLM4 Ontonagon River near Rockland MI 46.7208 -89.2069 ROCM4 Rogue River below Rockford MI 43.0822 -85.5908 RUDM4 Pine River near Rudyard MI 46.1858 -84.5978 SAGM4 Saginaw River at Saginaw MI 43.4128 -83.9631 SCTM4 Pere Marquette River near Scottville MI 43.9450 -86.2786 SFRM4 Rouge River at Southfield MI 42.4478 -83.2978 SHRM4 Manistee River near Sherman MI 44.4364 -85.6986 SLVM4 Silver River near L'Anse MI 46.8042 -88.3169 SMNM4 Salmon Trout River near Big Bay MI 46.7822 -87.8775 SMYM4 Flat River near Smyrna MI 43.0528 -85.2647 SNWM4 Sturgeon River near Sidnaw MI 46.5842 -88.5758 STRM4 Rifle River near Sterling MI 44.0725 -84.0200 SZCM4 Schweitzer Creek near Palmer MI 46.4111 -87.6242 SZRM4 Schweitzer Reservoir near Schweitzer Reservoir MI 46.4167 -87.6467 TAPM4 Tahquamenon River near Paradise MI 46.5750 -85.2694 TECM4 River Raisin near Tecumseh MI 41.9431 -83.9453 TRRM4 Trap Rock River near Lake Linden MI 47.2286 -88.3856 TRVM4 Saint Joseph River at Three Rivers MI 41.9403 -85.6328 TWFM4 Menominee River near Twin Falls Dam MI 45.8714 -88.0700 URDM4 Upper Rouge River at Detroit MI 42.3939 -83.2764 VCKM4 Portage River near Vicksburg MI 42.1147 -85.4856 VLCM4 Menominee River near Vulcan MI 45.7367 -87.8633 VSSM4 Cass River at Vassar MI 43.3708 -83.5811 WAHM4 Cass River at Wahjamega MI 43.4506 -83.4414 WHTM4 White River above Whitehall MI 43.4642 -86.2325 WLKM4 Michigamme River near Witch Lake MI 46.2467 -88.0125 WMSM4 Red Cedar River above Williamston MI 42.6831 -84.2192 YDRM4 Yellow Dog River near Big Bay MI 46.7136 -87.8406 ZEEM4 Macatawa River near Zeeland MI 42.7792 -86.0183 AKAM5 Mississippi River at Anoka MN 45.1914 -93.3914 ALVM5 Snake River at Alvarado MN 48.1950 -97.0050 ANKM5 Mississippi River at Anoka MN 45.1267 -93.2967 ASTM5 Cedar River at Austin MN 43.6558 -92.9708 ATKM5 Mississippi River at Aitkin MN 46.5406 -93.7072 BRAM5 Mississippi River near Brainerd MN 46.3778 -94.1831 CLXM5 Sand Hill River at Climax MN 47.6119 -96.8144 CRKM5 Red Lake River at Crookston MN 47.7756 -96.6100 DELM5 South Fork Crow River at Delano MN 45.0419 -93.7897 DILM5 Buffalo River near Dilworth MN 46.9633 -96.6617 DOBM5 Dobbins Creek at Austin MN 43.6772 -92.9397 EGFM5 Red River at East Grand Forks MN 47.9269 -97.0283 FTRM5 Mississippi River near Fort Ripley MN 46.1806 -94.3656 GNDM5 Mississippi River at Grand Rapids MN 47.2322 -93.5300 GTEM5 Minnesota River at Granite Falls MN 44.8056 -95.5439 HENM5 Minnesota River at Henderson MN 44.5294 -93.9006 HIGM5 Red Lake River at High Landing MN 48.0486 -95.8089 HLLM5 Two Rivers River near Hallock MN 48.7756 -96.9375 HNDM5 Wild Rice River (Mn) at Hendrum MN 47.2669 -96.7969 HOUM5 Root River near Houston MN 43.7686 -91.5697 HRDM5 Rock River near Hardwick MN 43.7178 -96.1644 HSTM5 Mississippi River near Hastings L/D #2 MN 44.7569 -92.8661 HWYM5 Buffalo River near Hawley MN 46.8522 -96.3292 JCKM5 Des Moines River at Jackson MN 43.6183 -94.9847 JDNM5 Minnesota River near Jordan MN 44.6931 -93.6417 JSPM5 Split Rock Creek below Jasper MN 43.7769 -96.4372 LANM5 Cedar River at Lansing MN 43.7467 -92.9586 LGPM5 Long Prairie River at Long Prairie MN 45.9750 -94.8656 LKCM5 Mississippi River at Lake City MN 44.4500 -92.2636 LNSM5 South Branch Root River at Lanesboro MN 43.7219 -91.9786 LUVM5 Rock River at Luverne MN 43.6542 -96.2011 MAYM5 South Fork Crow River below Mayer MN 44.9056 -93.8847 MKLM5 Snake River above Warren MN 48.2097 -96.7181 MNKM5 Minnesota River at Mankato MN 44.1689 -94.0031 MSHM5 Redwood River near Marshall MN 44.4322 -95.8292 MSPM5 Mississippi River at Minneapolis MN 45.0464 -93.2767 MVOM5 Minnesota River at Montevideo MN 44.9333 -95.7333 NWUM5 Cottonwood River at New Ulm MN 44.2914 -94.4400 OSLM5 Red River at Oslo MN 48.1942 -97.1408 PILM5 N Branch Mdl Fork Zumbro River at Pine Island MN 44.2028 -92.6450 PIPM5 Pipestone Creek at Pipestone MN 44.0033 -96.3069 PNCM5 Snake River near Pine City MN 45.8417 -92.9333 PNLM5 Middle Fork Zumbro River at Pine Island MN 44.1928 -92.6478 PTNM5 South Branch Root River at Preston MN 43.6672 -92.0836 RBCM5 Bear Creek at Rochester MN 44.0075 -92.4458 RCCM5 Cascade Creek at Rochester MN 44.0308 -92.4719 RCHM5 South Fork Zumbro River at Rochester 37Th St MN 44.0617 -92.4664 RCSM5 South Fork Zumbro River at Rochester Beltline MN 44.0072 -92.4719 RDWM5 Mississippi River at Red Wing L/D #3 MN 44.6064 -92.6050 REDM5 Mississippi River at Red Wing MN 44.5658 -92.5411 RKFM5 Crow River at Rockford MN 45.0867 -93.7339 ROCM5 Silver Creek at Rochester MN 44.0289 -92.4289 ROSM5 Roseau River at Roseau MN 48.8464 -95.7603 RUSM5 Redwood River at Russell MN 44.3219 -95.9531 RWDM5 Redwood River near Redwood Falls MN 44.5236 -95.1714 SABM5 So Br Buffalo River at Sabin MN 46.7756 -96.6275 SAVM5 Minnesota River at Savage MN 44.7878 -93.3294 SCNM5 St. Louis River at Scanlon MN 46.7033 -92.4186 SCOM5 Mississippi River at St Cloud MN 45.5472 -94.1456 SHYM5 Marsh River at Shelly MN 47.4119 -96.7633 SNCM5 Sand Creek at Jordan MN 44.6683 -93.6344 STCM5 Sauk River at St Cloud MN 45.5597 -94.2333 STLM5 St Croix River at Stillwater MN 45.0561 -92.8031 STPM5 Mississippi River at St Paul MN 44.9339 -93.1058 TACM5 Prairie River near Taconite MN 47.3889 -93.3806 TRCM5 Turtle Creek near Austin MN 43.6850 -93.0394 TWVM5 Wild Rice River (Mn) at Twin Valley MN 47.2656 -96.2478 WABM5 Mississippi River at Wabasha MN 44.3867 -92.0369 WDOM5 Des Moines River near Windom MN 43.8903 -95.1608 WGOM5 North Fork Zumbro River above Wanamingo MN 44.3136 -92.8103 WNAM5 Mississippi River at Winona MN 44.0558 -91.6378 WSPM5 Middle Fork Whitewater River near Whitewater Park MN 44.0372 -92.1044 ZUMM5 Zumbro River at Zumbro Falls MN 44.2856 -92.4300 AGYM7 Platte River near Agency MO 39.6881 -94.7025 ALYM7 Jacks Fork at Alley Spring MO 37.1481 -91.4431 ANNM7 Black River near Annapolis MO 37.3361 -90.7886 ARNM7 Meramec River near Arnold MO 38.4567 -90.3606 BLRM7 Big Creek at Blairstown MO 38.5550 -93.9653 BLVM7 Blackwater River near Blue Lick MO 38.9922 -93.1967 BONM7 Petite Saline Creek near Boonville MO 38.9172 -92.7044 BOZM7 Missouri River at Boonville MO 38.9806 -92.7456 BRLM7 Nodaway River near Burlington Junction MO 40.4450 -95.0894 BRNM7 Grand River near Brunswick MO 39.4303 -93.1597 BYRM7 Big River at Byrnesville MO 38.3917 -90.6378 CAGM7 Mississippi River at Winfield MO 39.0008 -90.6875 CANM7 Mississippi River at Canton MO 40.1408 -91.5153 CAXM7 Wakenda Creek at Carrollton MO 39.3433 -93.4856 CAXM7A Wakenda Creek at Carrollton MO 36.8333 -94.6667 CHTM7 Spring River at Carthage MO 37.1886 -94.3258 CHZM7 Grand River near Chillicothe MO 39.7544 -93.5564 CLKM7 Mississippi River at Clarksville MO 39.3733 -90.9047 CMSM7 Missouri River near Chamois MO 38.6828 -91.7622 CMZM7 Sac River near Caplinger Mills MO 37.8697 -93.8031 CPGM7 Mississippi River at Cape Girardeau MO 37.3019 -89.5181 CPZM7 Salt River at Mark Twain Lake MO 39.5247 -91.6442 CRTM7 Mississippi River at Caruthersville MO 36.1947 -89.6536 DNZM7 Current River near Doniphan MO 36.6219 -90.8475 DRCM7 Dardenne Creek at St. Peters MO 38.8033 -90.6350 EADM7 Mississippi River at St. Louis MO 38.6289 -90.1797 EMCM7 Jacks Fork River at Eminence MO 37.1542 -91.3581 ERKM7 Meramec River near Eureka MO 38.5056 -90.5917 EWMM7 Middle Fabius River near Ewing MO 40.0289 -91.7056 EWNM7 North Fabius River near Ewing MO 40.0189 -91.6219 FFXM7 Tarkio River at Fairfax MO 40.3394 -95.4067 FRZM7 Little St Francis River near Fredericktown MO 37.5594 -90.3128 FSKM7 St. Francis River at Fisk MO 36.7806 -90.2022 FYTM7 Moniteau Creek near Fayette MO 39.1208 -92.5672 GAZM7 Grand River near Gallatin MO 39.9269 -93.9425 GGYM7 Mississippi River at Gregory Landing MO 40.2792 -91.4958 GLNM7 James River at Galena MO 36.8053 -93.4617 GLZM7 Missouri River at Glasgow MO 39.2244 -92.8481 GSCM7 Missouri River at Gasconade MO 38.6747 -91.5561 HNNM7 Mississippi River at Hannibal MO 39.7119 -91.3544 HRNM7 Missouri River at Hermann MO 38.7097 -91.4386 HTNM7 Little Osage near Horton MO 37.9947 -94.3694 HZLM7 Gasconade River at Hazelgreen MO 37.7592 -92.4517 JCMM7 Moreau River near Jefferson City MO 38.5289 -92.1919 JFFM7 Missouri River at Jefferson City MO 38.5869 -92.1797 JOPM7 Shoal Creek near Joplin MO 37.0231 -94.5167 JRMM7 Gasconade River at Jerome MO 37.9300 -91.9772 KAYM7 Blue River at 63Rd Street MO 39.0139 -94.5250 KBNM7 Little Blue River at Knobtown Kansas City MO 38.9642 -94.4267 KBRM7 Blue River at Blue Ridge Boulevard MO 38.8894 -94.5808 KCCM7 Blue River at Bannister Road MO 38.9572 -94.5586 KCDM7 Missouri River at Kansas City MO 39.1117 -94.5881 KCTM7 Blue River at 12Th Street MO 39.0967 -94.4906 KNYM7 Blue River at 71 Highway MO 38.9722 -94.5478 KSDM7 Blue River at Stadium Drive MO 39.0586 -94.5125 KSVM7 Blue River at 17Th Street MO 39.0897 -94.4925 KSYM7 Blue River at 40 Highway MO 39.0700 -94.5069 KWPM7 Brush Creek at Ward Parkway-Kansas City MO 39.0333 -94.6053 LKCM7 Little Blue River near Lake City MO 39.1006 -94.3003 LUSM7 Mississippi River at Louisiana MO 39.4525 -91.0467 MBYM7 Fishing River near Mosby MO 39.3200 -94.3131 MIAM7 Missouri River at Miami MO 39.3283 -93.2247 MYVM7 102 River at Maryville MO 40.3456 -94.8322 NAPM7 Missouri River at Napoleon MO 39.1336 -94.0633 NLDM7 Salt River near New London MO 39.6122 -91.4072 NMDM7 Mississippi River at New Madrid MO 36.5831 -89.5322 NVDM7 Marmaton River near Nevada MO 37.8619 -94.3989 NVZM7 Chariton River at Novinger MO 40.2344 -92.6864 OMNM7 Cuivre River at Old Monroe MO 38.9289 -90.7458 OTTM7 Lamine River near Otterville MO 38.7022 -92.9789 PALM7 North River at Palmyra MO 39.8169 -91.5461 PASM7 Mid Fork Salt River near Paris MO 39.4847 -91.9972 PATM7 Grand River near Pattonsburg MO 40.0256 -94.1269 PAZM7 St. Francis River near Patterson MO 37.1944 -90.5033 PCFM7 Meramec River at Pacific MO 38.4672 -90.7350 PLCM7 Platte River near Platte City MO 39.3692 -94.7867 PMZM7 Mid Fork Salt River near Holliday MO 39.5242 -92.1278 PPBM7 Black River at Poplar Bluff MO 36.7597 -90.3881 PRIM7 Chariton River near Prairie Hill MO 39.5403 -92.7897 RICM7 Crooked River near Richmond MO 39.3328 -93.9803 RIFM7 Gasconade River near Rich Fountain MO 38.3889 -91.8208 ROZM7 St Francis River below Roselle MO 37.5958 -90.4986 RSDM7 102 River at Rosendale MO 40.0453 -94.8286 SAZM7 St Francis River at Saco MO 37.3844 -90.4739 SBEM7 Missouri River at Sibley MO 39.1792 -94.1842 SCLM7 Missouri River at St. Charles MO 38.7889 -90.4708 SCZM7 Osage River near Schell City MO 38.0558 -94.1456 SEEM7 Meramec River near Steelville MO 37.9986 -91.3608 SFLM7 Des Moines River at St Francisville MO 40.4624 -91.5670 SJSM7 Missouri River at St Joseph MO 39.7533 -94.8569 SLLM7 Meramec River near Sullivan MO 38.1583 -91.1083 SMHM7 Little Platte River at Smithville MO 39.3886 -94.5789 SNZM7 Grand River near Sumner MO 39.6394 -93.2728 SSTM7 Platte River at Sharps Station MO 39.4008 -94.7267 STTM7 Osage River near St. Thomas MO 38.4214 -92.2083 SVRM7 Mississippi River at Saverton MO 39.6336 -91.2472 TAYM7 South Fabius River near Taylor MO 39.8969 -91.5803 TBNM7 Big Piney River at Fort Leonard Wood MO 37.7367 -92.0811 TIFM7 Elk River near Tiff City MO 36.6306 -94.5867 TNZM7 North Fork Of White River near Tecumseh MO 36.6231 -92.2481 TRYM7 Cuivre River near Troy MO 39.0089 -90.9775 TTZM7 Thompson River at Trenton MO 40.0694 -93.6383 UNNM7 Bourbeuse River at Union MO 38.4442 -90.9956 URHM7 South Grand River at Urich MO 38.4525 -94.0039 VLLM7 Meramec River at Valley Park MO 38.5467 -90.4850 VLYM7 Blackwater River at Valley City MO 38.8700 -93.6225 VNBM7 Current River at Van Buren MO 36.9914 -91.0136 WCOM7 Spring River near Waco MO 37.2456 -94.5664 WHGM7 Missouri River at Washington MO 38.5597 -91.0075 WPHM7 Maries River near Westphalia MO 38.4319 -91.9886 WVYM7 Missouri River at Waverly MO 39.2153 -93.5119 WYLM7 Fox River at Wayland MO 40.3925 -91.5978 ABDM6 Buttahatchie River near Aberdeen MS 33.7903 -88.3156 ABEM6 Tenn-Tom Waterway at Aberdeen MS 33.8300 -88.5200 AMYM6 Tombigbee River near Amory MS 33.9856 -88.5511 ANGM6 Big Sunflower River near Anguilla MS 32.9717 -90.7778 BELM6 Yazoo River near Belzoni MS 33.1647 -90.4953 BGBM6 Tombigbee River at Bigbee MS 34.0114 -88.5136 BKNM6 Black Creek near Brooklyn MS 31.0519 -89.2042 BLCM6 Black Creek at Black Creek MS 30.8489 -89.0342 BLWM6 Biloxi River near Wortham MS 30.5500 -89.1167 BOVM6 Big Black River near Bovina MS 32.3478 -90.6969 BRCM6 Skuna River at Bruce MS 33.9728 -89.3478 BTAM6 Big Black River near Bentonia MS 32.6031 -90.3639 CARM6 Pearl River near Carthage MS 32.7072 -89.5264 CBUM6 Tenn-Tom Waterway at Stennis Lock & Dam MS 33.5175 -88.4894 CCTM6 Yalobusha River at Calhoun City MS 33.8386 -89.3156 CKYM6 Chunky River near Chunky MS 32.3261 -88.9092 CLMM6 Pearl River near Columbia MS 31.2378 -89.8469 CLSM6 Leaf River near Collins MS 31.7069 -89.4069 CLUM6 Luxapallila Creek near Columbus MS 33.5142 -88.3953 CREM6 East Hobolochitto Creek near Caesar MS 30.5714 -89.5947 DIBM6 Tchoutacabouffa River near D'Iberville MS 30.4758 -88.8933 DLAM6 Strong River at D'Lo MS 31.9778 -89.8975 ENBM6 Pearl River at Edinburg MS 32.7989 -89.3350 ENSM6 Chickasawhay River at Enterprise MS 32.1750 -88.8197 ETAM6 Little Tallahatchie Canal at Etta MS 34.4825 -89.2244 FULM6 Tombigbee River near Fulton MS 34.2650 -88.4453 GDHM6 Pearl River near Lena MS 32.6672 -89.6461 GEEM6 Mississippi River near Greenville MS 33.2894 -91.1611 GLFM6 Wolf River above Gulfport MS 30.3933 -89.2064 GREM6 Yazoo River at Greenwood MS 33.5225 -90.1808 HATM6 Leaf River at Hattiesburg MS 31.3431 -89.2803 HBGM6 Bouie Creek near Hattiesburg MS 31.4258 -89.4147 JACM6 Pearl River at Jackson MS 32.2814 -90.1789 KLNM6 Jourdan River near Kiln/Bay St. Louis MS 30.3867 -89.4411 KSCM6 Yockanookany River near Kosciusko MS 33.0322 -89.5778 LEKM6 Chickasawhay at Leakesville MS 31.1486 -88.5481 LMGM6 Tallahatchie River near Lambert MS 34.1806 -90.2153 LNDM6 Wolf River near Landon MS 30.4833 -89.2744 LOGM6 Tallahatchie River at Locopolis MS 33.9758 -90.2578 LURM6 Tallahala Creek at Laurel MS 31.6808 -89.1156 LYMM6 Biloxi River near Lyman MS 30.4883 -89.0358 MCLM6 Leaf River near Mclain MS 31.1028 -88.8083 MCNM6 Noxubee River at Macon MS 33.1019 -88.5617 MEIM6 Sowashee Creek at Meridian MS 32.3678 -88.6772 MKSM6 Coldwater River at Marks MS 34.2611 -90.2669 MNLM6 West Hobolochitto Creek near Mcneill MS 30.6617 -89.6861 MRRM6 Pascagoula at Merrill MS 30.9781 -88.7269 MSBM6 Gulf Of Mexico at Bay St Louis MS 30.2414 -89.2489 MTCM6 Pearl River near Monticello MS 31.5533 -90.0881 NTZM6 Mississippi River at Natchez MS 31.5439 -91.4333 OFAM6 Yockanookany River near Ofahoma MS 32.7058 -89.6719 ORAM6 Escatawpa River above Orange Grove MS 30.4586 -88.4519 OSYM6 Tangipahoa River at Osyka MS 31.0122 -90.4611 OXDM6 Yocona River near Oxford MS 34.2728 -89.5214 PGFM6 Pascagoula River at Graham Ferry MS 30.6106 -88.6411 PLAM6 Pearl River above Philadelphia MS 32.8414 -89.0978 PNLM6 Gulf Of Mexico at Pascagoula Noaa Lab MS 30.3581 -88.5669 PSCM6 Pascagoula below Pascagoula MS 30.3669 -88.5633 RATM6 Pearl River near Ratliff MS 32.5942 -89.8406 RNTM6 Tallahala Creek near Runnelstown MS 31.3328 -89.1125 ROCM6 Pearl River near Rockport MS 31.7908 -90.1425 RSAM6 Homochitto River at Rosetta MS 31.3247 -91.1094 SARM6 Coldwater River near Sarah MS 34.5756 -90.2244 SHBM6 Chickasawhay River at Shubuta MS 31.8575 -88.6869 SUNM6 Big Sunflower River at Sunflower MS 33.5472 -90.5431 SWNM6 Tallahatchie River near Swan Lake MS 33.8606 -90.2767 TBBM6 Tibbee Creek near Tibbee MS 33.5381 -88.6333 TPOM6 Town Creek at Tupelo MS 34.2358 -88.6956 TRPM6 Mississippi River at Tunica Riverpark MS 34.8383 -90.3642 TYTM6 Bogue Chitto River near Tylertown MS 31.1769 -90.2800 ULAM6 Gulf Of Mexico at Port Of Pascagoula MS 30.3481 -88.5050 VCKM6 Mississippi River at Vicksburg MS 32.3119 -90.9022 WAVM6 Gulf Of Mexico at Waveland MS 30.2828 -89.3667 WOOM6 Buffalo River near Woodville MS 31.2264 -91.2958 WSTM6 Big Black River at West MS 33.1944 -89.7711 WTGM6 Tuscolameta Creek at Walnut Grove MS 32.5883 -89.4650 WYCM6 Gulf Of Mexico at Bay Waveland Yacht Club MS 30.3250 -89.3250 WYNM6 Chickasawhay near Waynesboro MS 31.6794 -88.6833 YWGM6 Yalobusha at Whaley MS 33.6314 -90.1092 YZOM6 Yazoo River at Yazoo City MS 32.8369 -90.4425 ABOM8 Clark Fork River above Above Missoula MT 46.8772 -113.9314 ANDM8 Warm Springs Creek near Near Anaconda MT 46.1336 -112.9133 BCHM8 Beaver Creek near Hinsdale MT 48.4203 -107.1711 BCMM8 Battle Creek at Chinook MT 48.6494 -109.2317 BELM8 Clark Fork River below Missoula MT 46.8692 -114.1258 BFYM8 Clarks Fork Of The Yellowstone near Belfry MT 45.0099 -109.0654 BILM8 Yellowstone River at Billings MT 45.8000 -108.4667 BITM8 Bitterroot River near Missoula MT 46.8319 -114.0531 BKTM8 Blacktail Creek at Butte MT 45.9944 -112.5356 BNYM8 Tongue River at Birney MT 45.4117 -106.4572 BONM8 Blackfoot River near Bonner MT 46.8997 -113.7556 BSMM8 Big Sandy Creek near Havre MT 48.5267 -109.8408 BTMM8 Boulder River at Big Timber MT 45.8342 -109.9381 CCMM8 Clear Creek near Chinook MT 48.5789 -109.3906 CFMM8 Flathead River at Columbia Falls MT 48.3619 -114.1839 CLBM8 Missouri River near Culbertson MT 48.1250 -104.4722 CORM8 Yellowstone River near Corwin Springs MT 45.1119 -110.7936 DARM8 Bitterroot River near Darby MT 45.9722 -114.1406 DBRM8 Dearborn River near Craig MT 47.1992 -112.0956 DLGM8 Clark Fork River at Deer Lodge MT 46.3978 -112.7419 DMRM8 Milk River at Dodson MT 48.4031 -108.2931 DRMM8 Clark Fork River near Drummond MT 46.7122 -113.3300 DRUM8 Clark Fork River at Drummond MT 46.6625 -113.1492 DTTM8 Teton River near Dutton MT 47.9303 -111.5519 EDGM8 Clarks Fork Of The Yellowstone at Edgar MT 45.4656 -108.8441 ERNM8 Milk River at Rudyard MT 48.9747 -110.4219 ESSM8 Middle Fork Flathead River near Essex MT 48.2750 -113.6028 FBNM8 Missouri River at Fort Benton MT 47.8175 -110.6664 FCFM8 North Fork Flathead River near Columbia Falls MT 48.4956 -114.1267 FISM8 Fisher River near Libby MT 48.3556 -115.3139 FPOM8 Flathead River near Polson MT 47.6803 -114.2458 FRYM8 Yellowstone River at Forsyth MT 46.2661 -106.6900 GLGM8 Gallatin River near Gallatin Gateway MT 45.4975 -111.2697 GLNM8 Yellowstone at Glendive MT 47.1058 -104.7186 GLWM8 Milk River at Glasgow MT 48.1600 -106.5928 HLWM8 Musselshell River at Harlowton MT 46.4300 -109.8400 HRDM8 Little Big Horn River near Hardin MT 45.7358 -107.5567 HRLM8 Milk River near Harlem MT 48.4894 -108.7578 HVRM8 Milk River at Havre MT 48.5639 -109.6950 KBDM8 Kootenai River below Libby Dam Near Libby MT 48.4008 -115.3197 LDKM8 Missouri River near Landusky MT 47.6308 -108.6869 LGEM8 Lodge Creek near Havre MT 49.0053 -109.7172 LIVM8 Yellowstone River near Livingston MT 45.5972 -110.5653 LOGM8 Gallatin River near Logan MT 45.8853 -111.4375 LVNM8 Musselshell River at Lavina MT 46.2928 -108.8919 MALM8 Milk River at Malta MT 48.3617 -107.8750 MDYM8 Muddy Creek at Vaughn MT 47.5608 -111.5406 MICM8 Tongue River at Miles City MT 46.3847 -105.8447 MILM8 Yellowstone River at Miles City MT 46.4219 -105.8617 MLRM8 Big Hole River near Melrose MT 45.5267 -112.7008 MSBM8 Musselshell River at Mosby MT 46.9947 -107.8883 MUSM8 Musselshell River at Musselshell MT 46.5231 -108.1083 NSHM8 Milk River at Nashua MT 48.1297 -106.3639 PLNM8 Clark Fork River near Near Plains MT 47.4297 -114.8550 PLRM8 Poplar River above Poplar MT 48.1708 -105.1783 PMKM8 Pumpkin Creek near Miles City MT 46.2283 -105.6900 POBM8 North Fork Flathead River at Polebridge MT 48.8000 -114.2667 PRCM8 Prospect Creek above Thompson Falls MT 47.5861 -115.3542 RCCM8 Rock Creek near Near Clinton MT 46.7225 -113.6822 RUPM8 Musselshell River at Roundup MT 46.4280 -108.5726 SACM8 Milk River at Saco MT 48.5089 -107.2172 SHAM8 Musselshell River at Shawmut MT 46.3186 -109.4597 SHLM8 Marias River near Shelby MT 48.4272 -111.8889 SIDM8 Yellowstone River near Sidney MT 47.6783 -104.1561 SLDM8 Shields River near Livingston MT 45.7383 -110.4792 SMBM8 St. Mary River at Babb MT 49.0119 -113.2992 SRAM8 Stillwater River at Absarokee MT 45.5514 -109.3880 SRGM8 Clark Fork River at St. Regis MT 47.3019 -115.0864 SRLM8 Stillwater River at Kalispell MT 48.2175 -114.3122 SSRM8 Sun River at Simms MT 47.5017 -111.9311 STRM8 St. Regis River at St. Regis MT 47.2969 -115.1217 SWRM8 Swan River near Bigfork MT 48.0244 -113.9789 TFKM8 Jefferson River near Three Forks MT 45.8978 -111.5958 THRM8 Thompson River near Thompson Falls MT 47.5919 -115.2286 TMPM8 Milk River at Tampico MT 48.3078 -106.8219 TOSM8 Missouri River near Toston MT 46.1461 -111.4197 TRYM8 Yaak River near Near Troy MT 48.5619 -115.9692 TWIM8 Jefferson River near Twin Bridges MT 45.6142 -112.3292 TWNM8 Beaverhead River at Twin Bridges MT 45.3836 -112.4519 ULLM8 Smith River at Ulm MT 47.3556 -111.4400 ULMM8 Missouri River at Great Falls MT 47.4350 -111.3853 VAUM8 Sun River near Vaughn MT 47.5258 -111.5119 VICM8 Bitterroot River near Victor MT 46.4433 -114.1228 WFRM8 Whitefish River at Kalispell MT 48.2267 -114.3644 WGCM8 Middle Fork Flathead River near West Glacier MT 48.4953 -114.0092 WPTM8 Missouri River at Wolf Point MT 48.0667 -105.5319 AVLN7 French Broad River at Asheville NC 35.6089 -82.5781 BGWN7 Northeast Cape Fear River near Burgaw NC 34.5983 -77.8753 BIRN7 Oconaluftee River at Birdtown NC 35.4614 -83.3536 BLAN7 French Broad River at Blantyre NC 35.2992 -82.6239 BLTN7 Swannanoa River at Biltmore NC 35.5683 -82.5447 BRDN7 Lumber River at Boardman NC 34.4425 -78.9603 BSPN7 Broad River at Boiling Springs NC 35.2108 -81.6978 BYNN7 Haw River near Bynum NC 35.7633 -79.1339 CHIN7 Northeast Cape Fear River near Chinquapin NC 34.8289 -77.8322 CLYN7 Neuse River near Clayton NC 35.6472 -78.4061 CPFN7 Cape Fear River at Lock And Dam 1 NC 34.4044 -78.2936 CTPN7 Pigeon River at Canton NC 35.5244 -82.8467 EFDN7 Fishing Creek at Enfield NC 36.1508 -77.6931 ELKN7 Yadkin River at Elkin NC 36.2406 -80.8492 ELZN7 Cape Fear River at Elizabethtown NC 34.6267 -78.5783 FAYN7 Cape Fear River at Fayetteville NC 35.0506 -78.8583 FTBN7 Neuse River at Fort Barnwell NC 35.3139 -77.3028 GLDN7 Neuse River near Goldsboro NC 35.3375 -77.9975 HAWN7 Haw River at Haw River NC 36.0869 -79.3672 HMLN7 Roanoke River at Hamilton NC 35.9475 -77.2025 HOKN7 Contentnea Creek near Hookerton NC 35.4289 -77.5825 HSPN7 French Broad River near Hot Springs NC 35.8897 -82.8211 KINN7 Neuse River at Kinston NC 35.2578 -77.5856 LBRN7 Lumber River near Lumberton NC 34.6336 -79.0378 LLLN7 Cape Fear River at Lillington NC 35.4061 -78.8133 LOUN7 Tar River at Louisburg NC 36.0931 -78.2961 LOWN7 South Fork Catawba River at Lowell NC 35.2853 -81.1011 MANN7 Lower Little River at Manchester NC 35.1936 -78.9856 MARN7 French Broad River at Marshall NC 35.7864 -82.6608 MCKN7 South Yadkin River at Mocksville NC 35.8450 -80.6589 MONN7 Deep River at Moncure NC 35.6272 -79.1161 NRWN7 Rocky River near Norwood NC 35.1483 -80.1758 OAKN7 Roanoke River near Oak City NC 36.0136 -77.2153 PAMN7 Pamlico River near Washington NC 35.5433 -77.0619 PGVN7 Tar River at Greenville NC 35.6167 -77.3728 PLLN7 Trent River at Pollocksville NC 35.0100 -77.2189 ROKN7 Tar River at Rocky Mount NC 35.9542 -77.7875 RRDN7 Lower Roanoke River at Roanoke Rapids NC 36.4603 -77.6344 SCON7 Lower Roanoke River near Scotland Neck NC 36.2092 -77.3839 SIMN7 Chicod Creek near Simpson NC 35.5617 -77.2308 SMFN7 Neuse River at Smithfield NC 35.5128 -78.3500 STPN7 Cape Fear at William O Huske Lock And Dam 3 NC 34.8347 -78.8242 SWFN7 Swift Creek near Streets Ferry NC 35.2308 -77.1139 TARN7 Tar River at Tarboro NC 35.8942 -77.5331 TKSN7 Tuckasegee River at Bryson City NC 35.4275 -83.4469 TNTN7 Trent River at Trenton NC 35.0642 -77.4614 WKSN7 Yadkin River at Wilkesboro NC 36.1525 -81.1456 WLLN7 Roanoke River near Williamston NC 35.8597 -77.0403 WNDN7 Cashie River near Windsor NC 36.0481 -76.9842 YADN7 Yadkin River at Yadkin College NC 35.8564 -80.3872 ABRN8 Wild Rice River at Abercrombie ND 46.4703 -96.7825 BANN8 Souris River near Bantry ND 48.5056 -100.4344 BREN8 Cannonball River at Breien ND 46.3761 -100.9344 BVRN8 Beaver Creek below Linton ND 46.2686 -100.2522 DARN8 Souris River at Lake Darling ND 48.4581 -101.5833 DESN8 Des Lacs River at Foxholm ND 48.3706 -101.5697 DNDN8 Heart River at Dickinson Dam ND 46.8697 -102.8269 DRTN8 Red River at Drayton ND 48.5722 -97.1472 ENDN8 Maple River near Enderlin ND 46.6217 -97.5736 FGON8 Red River at Fargo ND 46.8611 -96.7833 FOXN8 Souris River near Foxholm ND 48.3722 -101.5050 GARN8 Missouri River at Garrison Dam ND 47.5028 -101.4306 GCEN8 James River near Grace City ND 47.5581 -98.8625 GLUN8 Heart River at Heart Butte Dam ND 46.5953 -101.8094 GRNN8 Park River at Grafton ND 48.4247 -97.4117 HGRN8 Goose River at Hillsboro ND 47.4094 -97.0608 HILN8 Red River at Halstad ND 47.3519 -96.8433 HWDN8 Sheyenne River at Harwood ND 46.9772 -96.8933 HZNN8 Knife River near Hazen ND 47.2853 -101.6217 JAMN8 Pipestem Creek at Pipestem Dam ND 46.9622 -98.7531 JMDN8 James River near Jamestown Dam ND 46.9306 -98.7064 KLSN8 Wintering River near Karlsruhe ND 48.1383 -100.5394 KNDN8 Sheyenne River near Kindred ND 46.6317 -97.0003 LAMN8 James River at Lamoure ND 46.3553 -98.3058 LBNN8 Sheyenne River at Lisbon ND 46.4469 -97.6789 LGNN8 Souris River at Logan ND 48.1531 -101.1533 LMCN8 Little Muddy River near Williston ND 48.2844 -103.5725 MAPS2 Maple River near Frederick ND 45.9389 -98.4522 MDAN8 Little Missouri River at Medora ND 46.9194 -103.5278 MDNN8 Heart River near Mandan ND 46.8339 -100.9742 MENN8 Apple Creek near Menoken ND 46.7944 -100.6569 MINN8 Souris River above Minot ND 48.2458 -101.3708 MION8 Souris River at Minot Brwy Brdg ND 48.2381 -101.2958 MNGN8 "Knife River " at Manning ND 47.2361 -102.7694 MPLN8 Maple River near Mapleton ND 46.8667 -97.1058 MTHN8 Little Missouri at Marmarth ND 46.2978 -103.9175 MTON8 Forest River at Minto ND 48.2861 -97.3697 NCEN8 Pembina River at Neche ND 48.9894 -97.5569 PBNN8 Red River at Pembina ND 48.9736 -97.2414 PGEN8 Pipestem Creek near Pingree ND 47.1675 -98.9686 REGN8 Cannonball River at Regent ND 46.4267 -102.5644 RLGN8 Cedar Creek near Raleigh ND 46.0917 -101.3333 SHWN8 Souris River near Sherwood ND 48.9900 -101.9578 SWRN8 Souris River at Sawyer ND 48.0947 -101.0561 TOWN8 Souris River near Towner ND 48.3514 -100.5506 VCRN8 Sheyenne River at Valley City ND 46.9156 -98.0106 VLVN8 Souris River at Velva ND 48.0639 -101.0367 WFON8 Sheyenne River at West Fargo Diversion ND 46.8911 -96.9164 WHNN8 Red River at Wahpeton ND 46.2661 -96.5986 WLCN8 Willow Creek near Willow City ND 48.5889 -100.4417 WLHN8 Pembina River at Walhalla ND 48.9136 -97.9169 WLTN8 Missouri River near Williston ND 48.1081 -103.7142 WSTN8 Souris River near Westhope ND 48.9964 -100.9581 WTFN8 Little Missouri Rivr near Watford City ND 47.5903 -103.2644 ZAPN8 Spring Creek at Zap ND 47.2861 -101.9978 ABRN1 Little Nemaha River near Auburn NE 40.3928 -95.8127 ALDN1 Wood River near Alda NE 40.8547 -98.4742 ASDN1 Salt Creek at Ashland NE 41.0391 -96.3641 ASLN1 Platte River near Ashland NE 41.0623 -96.3244 BARN1 Big Blue River near Barneston NE 40.0448 -96.5873 BDYN1 Platte River at Brady North Channel NE 41.0194 -100.3711 BEAN1 Big Blue River at Beatrice NE 40.2568 -96.7470 BEKN1 So. Fk. Republican R near Benkelman NE 40.0094 -101.5422 BENN1 Republican River near Benkelman NE 40.0347 -101.5428 BEVN1 Beaver Creek at Beaver City NE 40.1200 -99.8931 BGPN1 North Platte River at Bridgeport NE 41.6772 -103.0961 BLAN1 Missouri River near Blair NE 41.5508 -96.0969 BRON1 Missouri River at Brownville NE 40.3989 -95.6533 BVSN1 Sappa Creek at Beaver City NE 40.0458 -99.8900 CABN1 Medicine Creek near Medicine Cr Dam NE 40.3778 -100.2167 CAMN1 Republican River at Cambridge NE 40.2844 -100.1436 CLBN1 Shell Creek near Columbus NE 41.5259 -97.2817 COZN1 Platte River near Cozad NE 40.8386 -99.9881 CRTN1 Big Blue River near Crete NE 40.5965 -96.9607 CULN1 Frenchman Creek near Culbertson NE 40.2347 -100.8778 DCTN1 Missouri River at Decatur NE 42.0079 -96.2429 DNCN1 Platte River near Duncan NE 41.3682 -97.4948 DRGN1 West Fork Big Blue River near Dorchester NE 40.7308 -97.1779 DWEN1 Little Blue River near Deweese NE 40.3325 -98.0669 EWIN1 Elkhorn River near Ewing NE 42.2683 -98.3394 FLLN1 Big Nemaha River at Falls City NE 40.0355 -95.5960 FRBN1 Little Blue River near Fairbury NE 40.1465 -97.1995 FULN1 Cedar River near Fullerton NE 41.3958 -98.0042 GBBN1 Wood River near Gibbon NE 40.7714 -98.7975 GELN1 Loup River near Genoa NE 41.4186 -97.7236 GEON1 Beaver Creek at Genoa NE 41.4414 -97.7344 GPDN1 Missouri River at Gavins Point Dam NE 42.8489 -97.4817 GRIN1 Platte River near Grand Island NE 40.8744 -98.2817 GRNN1 Salt Creek at Greenwood NE 40.9653 -96.4544 GUIN1 Republican River at Guide Rock NE 40.0644 -98.3303 HAIN1 Arikaree River near Haigler NE 40.0292 -101.9675 HBLN1 North Fork Big Nemaha River at Humboldt NE 40.1566 -95.9445 HENN1 North Platte River near Henry NE 41.9886 -104.0528 HMRN1 Omaha Creek at Homer NE 42.3217 -96.4878 HOON1 Elkhorn River at Hooper NE 41.6250 -96.5477 ITHN1 Wahoo Creek at Ithaca NE 41.1476 -96.5383 KEAN1 Platte River near Kearney NE 40.6581 -99.0861 KNGN1 North Platte River near Kingsley Dam NE 41.2367 -101.6667 LCNN1 Salt Creek at Lincoln NE 40.8468 -96.6816 LCWN1 Logan Creek at Wakefield NE 42.2769 -96.8617 LESN1 Platte River near Leshara NE 41.3197 -96.4044 LEWN1 North Platte River at Lewellen NE 41.3169 -102.1256 LOUN1 Platte River near Louisville NE 41.0150 -96.1573 LSON1 North Platte River near Lisco NE 41.4900 -102.6178 MCKN1 Driftwood Creek near Mccook NE 40.1403 -100.6739 MICN1 North Platte River near Mitchell NE 41.9272 -103.8133 MKLN1 Missouri River near Maskell NE 42.7147 -96.9436 MKRN1 Republican River at Mccook NE 40.1875 -100.6181 MNTN1 North Platte River near Minatare NE 41.7889 -103.5189 MRNN1 Missouri River at Niobrara NE 42.7617 -98.0278 MRPN1 Missouri River near Ponca NE 42.5750 -96.6833 MRVN1 Missouri River near Verdel NE 42.7711 -98.0619 MSJN1 Missouri River near St James NE 42.7611 -97.0819 NBDN1 Platte River at North Bend NE 41.4530 -96.7757 NEBN1 Missouri River at Nebraska City NE 40.6818 -95.8471 NFKN1 Elkhorn River at Norfolk NE 42.0038 -97.4260 NKRN1 Maple Creek near Nickerson NE 41.5612 -96.5410 NLIN1 Elkhorn River at Neligh NE 42.1230 -98.0439 NPSN1 South Platte River at North Platte NE 41.1181 -100.7728 NPTN1 North Platte River near North Platte NE 41.1542 -100.7589 OMHN1 Missouri River at Omaha NE 41.2591 -95.9232 ORNN1 Republican River near Orleans NE 40.1317 -99.5025 PALN1 Frenchman Creek near Palisade NE 40.3519 -101.1233 PASN1 Stinking Water Creek near Palisade NE 40.3694 -101.1139 PLGN1 Elkhorn River at Pilger NE 41.9951 -97.0587 PRCN1 North Fork Elkhorn River near Pierce NE 42.1485 -97.4788 PTMN1 Missouri River at Plattsmouth NE 41.0151 -95.8687 RIVN1 Wood River near Riverdale NE 40.7972 -99.1972 ROCN1 Salt Creek at Roca NE 40.6579 -96.6655 RSON1 South Platte River near Roscoe NE 41.1261 -101.5767 RULN1 Missouri River at Rulo NE 40.0536 -95.4219 RVNN1 South Loup River near Ravenna NE 41.0117 -98.9122 RVRN1 Republican River near Riverton NE 40.0889 -98.7650 SMIN1 South Loup River at Saint Michael NE 41.0325 -98.7406 SPKN1 Niobrara River near Sparks NE 42.9022 -100.3622 SPLN1 Middle Loup River near Saint Paul NE 41.2036 -98.4461 SPUN1 North Loup River near Saint Paul NE 41.2633 -98.4489 SRBN1 Pebble Creek at Scribner NE 41.6588 -96.6841 SRPN1 Big Blue River near Surprise NE 41.1020 -97.3108 SSCN1 Missouri River at South Sioux City NE 42.4858 -96.4136 STMN1 Sappa Creek near Stamford NE 40.1183 -99.5169 STTN1 Republican River at Stratton NE 40.1406 -101.2297 SWDN1 Lincoln Creek near Seward NE 40.9158 -97.1453 SWRN1 Big Blue River near Seward NE 40.9029 -97.1118 SWTN1 Mud Creek at Sweetwater NE 41.0375 -98.9931 UEHN1 Logan Creek near Uehling NE 41.7126 -96.5216 UION1 Weeping Water Creek near Union NE 40.7939 -95.9114 VERN1 Ponca Creek at Verdel NE 42.8110 -98.1751 VRDN1 Niobrara River near Verdel NE 42.7397 -98.2227 WLBN1 Turkey Creek near Wilber NE 40.4802 -97.0126 WLON1 Elkhorn River at Winslow NE 41.6110 -96.4685 WPNN1 Elkhorn River at West Point NE 41.8396 -96.7275 WTRN1 Elkhorn River at Waterloo NE 41.2933 -96.2839 BETN3 Ammonoosuc River at Bethlehem NH 44.2686 -71.6308 BRSN3 Smith River at Bristol NH 43.5678 -71.7483 CNWN3 Saco River at Conway NH 43.9908 -71.0906 CONN3 Merrimack River at Concord NH 43.2089 -71.5308 DAVN3 Warner River at Davisville NH 43.2508 -71.7328 DLTN3 Connecticut River near Dalton NH 44.4100 -71.7211 FRJN3 Merrimack River at Franklin Junction NH 43.4228 -71.6533 GFFN3 Piscataquog River near Goffstown NH 43.0167 -71.5511 GOFN3 Merrimack River at Goffs Falls NH 42.9481 -71.4639 GRMN3 Androscoggin River at Gorham NH 44.4361 -71.1908 HENN3 Contoocook River at Henniker NH 43.1519 -71.8578 LAMN3 Lamprey River near Newmarket NH 43.1025 -70.9531 MTHM3 Spicket River near Methuen NH 42.7431 -71.2089 NCHN3 Suncook River at North Chichester NH 43.2567 -71.3700 NSHN3 Merrimack River at Nashua NH 42.7639 -71.4431 NSTN3 Connecticut River at North Stratford NH 44.7489 -71.6306 PLMN3 Pemigewasset River at Plymouth NH 43.7592 -71.6861 PTRN3 Contoocook River at Peterborough NH 42.8625 -71.9597 RUMN3 Baker River at Rumney NH 43.7961 -71.8450 SOHN3 Souhegan River at Merrimack NH 42.8575 -71.5067 SOUN3 Soucook River near Pembroke NH 43.2131 -71.4803 WCLN3 Sugar River at West Claremont NH 43.3875 -72.3625 WLBN3 Connecticut River at West Lebanon NH 43.6461 -72.3128 WLPN3 Connecticut River at North Walpole NH 43.1261 -72.4372 WOON3 Pemigewasset River at Woodstock NH 43.9761 -71.6800 BDKN4 Raritan River at Bound Brook NJ 40.5511 -74.5483 BKWN4 Millstone River at Blackwells Mills NJ 40.4750 -74.5758 BNTN4 Rockaway River at Boonton Above The Reservoir NJ 40.9028 -74.4097 BONN4 Rockaway River at Boonton Below The Reservoir NJ 40.8969 -74.3947 BOTN4 Rockaway River at Boonton Above The Reservoir NJ 40.9075 -74.4192 BVDN4 Delaware River at Belvidere NJ 40.8264 -75.0825 CAMN4 Passaic River at Chatham NJ 40.7261 -74.3897 ESTN4 Delaware River at Easton-Phillipsburg NJ 40.6944 -75.2033 FREN4 Delaware River at Frenchtown NJ 40.5261 -75.0650 LTFN4 Passaic River at Little Falls NJ 40.8847 -74.2261 MCPN4 Pequannock River below Macopin Dam NJ 41.0183 -74.4011 MILN4 Passaic River at Millington NJ 40.6800 -74.5289 MNVN4 Raritan River at Manville NJ 40.5556 -74.5828 MTGN4 Delaware River at Montague NJ 41.3092 -74.7956 NHPP1 Delaware River at New Hope-Lambertville NJ 40.3647 -74.9489 PEBN4 North Branch Rancocas Creek at Pemberton NJ 39.9694 -74.6844 PINN4 Passaic River at Pine Brook NJ 40.8625 -74.3217 PPPN4 Pompton River at Pompton Plains NJ 40.9697 -74.2819 PPTN4 Ramapo River at Pompton Lakes NJ 40.9919 -74.2800 RGLN4 Delaware River at Riegelsville NJ 40.5947 -75.1897 RRTN4 North Branch Raritan River at Raritan NJ 40.5706 -74.6792 STKN4 Delaware River at Stockton NJ 40.4028 -74.9792 STTN4 South Branch Raritan River at Stanton NJ 40.5722 -74.8681 TACN4 Assunpink Creek at Trenton NJ 40.2242 -74.7492 TKSN4 Delaware River near Tocks Island NJ 41.0133 -75.0861 TREN4 Delaware River at Trenton NJ 40.2217 -74.7781 WASN4 Delaware River at Washington's Crossing NJ 40.2944 -74.8694 WNQN4 Wanaque River at Wanaque Dam NJ 41.0442 -74.2931 ABQN5 Rio Grande at Albuquerque NM 35.0892 -106.6806 ACMN5 Pecos River below Acme NM 33.5361 -104.3767 AICN5 Rio Chama above Abiquiu NM 36.2372 -106.4175 ARCN5 San Juan River near Archuleta NM 36.8019 -107.6986 ARFN5 Animas River at Farmington NM 36.7225 -108.2019 ATCN5 Pecos River below Anton Chico NM 35.1786 -105.1089 ATSN5 Pecos River near Artesia NM 32.8408 -104.3239 BNDN5 Rio Puerco near Bernardo NM 34.4103 -106.8544 CDRC2 Animas River near Cedar Hill NM 37.0367 -107.8753 CERN5 Rio Grande near Cerro NM 36.7400 -105.6839 CMMN5 Cimarron River above Cimarron NM 36.5197 -104.9786 CMTN5 Rio Chama near Chamita NM 36.0736 -106.1117 COLN5 Gallinas River above Colonias NM 35.1819 -104.9003 CPDN5 Pecos River at Carlsbad NM 32.4092 -104.2150 CRBN5 Rocky Arroyo above Rocky Arroyo NM 32.5061 -104.3750 CSBN5 Pecos River above Carlsbad NM 32.5111 -104.3333 CTDN5 Rio Grande above Cochiti Pueblo NM 35.6181 -106.3239 DACN5 Dark Canyon Draw at Carlsbad NM 32.4033 -104.2294 DARN5 Rio Hondo above Roswell NM 33.3492 -104.8517 DAWN5 Vermejo River above Dawson NM 36.6811 -104.7864 DAYN5 Rio Penasco below Rio Penasco NM 32.7433 -104.4142 DIXN5 Embudo Creek below Dixon NM 36.2108 -105.9136 EMBN5 Rio Grande at Embudo NM 36.2056 -105.9639 ESPN5 Rio Grande at Espanola NM 35.9881 -106.0750 FRMN5 San Juan River at Farmington NM 36.7231 -108.2256 GILN5 Gila River above Gila NM 33.0611 -108.5367 GOLN5 Mora River near Golondrinas NM 35.8908 -105.1636 GRTN5 Rio San Jose at Grants NM 35.1544 -107.8697 GSFN5 San Francisco River below Glenwood NM 33.2472 -108.8800 GVRN5 Gila River above Virden NM 32.6481 -108.8453 JEZN5 Jemez River above Jemez Pueblo NM 35.6619 -106.7433 LATN5 Pecos River near Lake Arthur NM 32.9892 -104.3208 LCVN5 Mora River at La Cueva NM 35.9450 -105.2558 LGNN5 Revuelto Creek near Logan NM 35.3444 -103.3897 LMDN5 Rio Ojo Caliente below La Madera NM 36.3497 -106.0442 MLAN5 Black River above Malaga NM 32.2292 -104.1519 MLGN5 Pecos River near Malaga NM 32.2075 -104.0239 OTWN5 Rio Grande near San Ildefonso Pueblo NM 35.8744 -106.1425 PCON5 Pecos River above Pecos NM 35.7083 -105.6828 PUEN5 Pecos River below Puerto De Luna NM 34.7300 -104.5250 RBFN5 Pecos River at Malaga 10S NM 32.0753 -104.0394 RCAN5 Rio Chama above Abiquiu NM 36.3189 -106.5994 RCEN5 Rio Chama below Tierra Amarilla NM 36.5803 -106.7247 RDBN5 Delaware River near Red Bluff NM 32.0231 -104.0545 RGCN5 Galisteo Creek near Rosario NM 35.4647 -106.2133 RGRN5 Gila River near Red Rock NM 32.7269 -108.6750 RIPN5 Rio Puerco above Guadalupe NM 35.6008 -107.1667 SFPN5 Rio Grande above San Felipe Pueblo NM 35.4447 -106.4397 SHRN5 San Juan River at Shiprock NM 36.7767 -108.6831 SMFN5 Rio Grande below San Marcial NM 33.6792 -106.9969 SNAN5 Rio Grande at San Acacia NM 34.2564 -106.8908 SNCN5 Canadian River above Sanchez NM 35.6547 -104.3786 SPGN5 Cimarron River at Springer NM 36.3603 -104.5981 TBCN5 Rio Pueblo De Taos below Taos NM 36.3794 -105.6678 TJBN5 Rio Grande below Taos NM 36.3200 -105.7544 TYLN5 Canadian River below Taylor Springs NM 36.2975 -104.4956 BRON2 Bruneau River at Rowland NV 41.9333 -115.6736 CBLN2 Carson River below Lahontan Dam NV 39.4639 -119.0464 CMSN2 Humboldt River at Comus NV 40.9922 -117.3167 DIXN2 S Fk Humboldt River below South Fork Dam NV 40.6850 -115.8125 EWSN2 East Walker River above Strosnider Ditch Near Mason NV 38.8136 -119.0481 FTCN2 Carson River near Fort Churchill NV 39.2917 -119.3111 GRDN2 East Fork Carson River near Gardnerville NV 38.8453 -119.7061 HBMN2 Humboldt River at Battle Mountain NV 40.6678 -116.9303 HOYN2 West Walker River At Hoye Bridge near Wellington NV 38.7281 -119.4278 HRCN2 Humboldt River above Carlin NV 40.7278 -116.0083 HREN2 Humboldt River near Elko NV 40.9361 -115.6236 HRIN2 Humboldt River near Imlay NV 40.6925 -118.2033 HRPN2 Humboldt River below Rye Patch NV 40.4675 -118.3067 JBGN2 Jarbidge River below Jarbidge NV 41.8906 -115.4278 LCLN2 Lamoille Creek above Lamoille NV 40.6908 -115.4761 MARN2 Martin Creek near Paradise Valley NV 41.5347 -117.4169 MASN2 Walker River near Mason NV 38.9194 -119.1903 MBON2 Marys River near Charleston NV 41.5500 -115.3058 MGCN2 Maggie Creek near Carlin NV 40.7164 -116.0922 MHSN2 Marys River Above Hot Springs Ck near Deeth NV 41.2528 -115.2556 MUDN2 Muddy River near Glendale NV 36.6431 -114.5389 OGCN2 Owyhee River below Wildhorse NV 41.6889 -115.8439 OMCN2 Owyhee River at Mountain City NV 41.8606 -115.9883 PALN2 Humboldt River at Palisade NV 40.6069 -116.2014 SCRN2 Steamboat Creek at Steamboat NV 39.3772 -119.7436 SFHN2 South Fork Humboldt River above South Fork Dam NV 40.6275 -115.7306 SFLN2 Salmon Falls Creek near Jackpot NV 41.9444 -114.6875 STWN2 Carson River near Carson City NV 39.1078 -119.7122 TRRN2 Truckee River at Reno NV 39.5303 -119.7944 VISN2 Truckee River at Vista NV 39.5206 -119.7006 WALN2 Walker River near Wabuska NV 39.1525 -119.0989 WSIN2 Walker River near Schurz NV 38.9403 -118.8028 ALBN6 Hudson River at Albany NY 42.6461 -73.7481 AMTN6 Mohawk River at Amsterdam Lk 11-E NY 42.9467 -74.2108 ARTN6 Black River at Watertown NY 43.9856 -75.9250 ASEN6 Esopus Creek at Ashokan Rsvr East NY 41.9503 -74.2083 ASFN6 East Branch Ausable River at Ausable Forks NY 44.4389 -73.6819 ASWN6 Esopus Creek at Ashokan Rsvr W. NY 41.9503 -74.2083 AVON6 Genesee River at Avon NY 42.9178 -77.7575 BAIN6 Susquehanna River at Bainbridge NY 42.2914 -75.4767 BKBN6 Schoharie Creek at Breakabeen NY 42.5369 -74.4108 BNGN6 Susquehanna River at Binghamton Washington Street NY 42.0925 -75.9150 BOON6 Black River at Boonville NY 43.5117 -75.3069 BRGN6 Neversink River above Bridgeville NY 41.6375 -74.6178 BRTN6 Schoharie Creek at Burtonsville NY 42.8000 -74.2633 BRYN6 Delaware River near Barryville NY 41.5089 -74.9861 BTTN6 Batten Kill River at Battenville NY 43.1086 -73.4222 BTVN6 Tonawanda Creek at Batavia NY 42.9975 -78.1886 CCRN6 Delaware River at Callicoon NY 41.7567 -75.0578 CHEN6 Chemung River at Elmira NY 42.0864 -76.8014 CHRN6 Black Creek at Churchville NY 43.1006 -77.8825 CINN6 Otselic River at Cincinnatus NY 42.5411 -75.8994 CKFN6 Beaver Kill River near Cooks Falls NY 41.9464 -74.9800 CKLN6 Susquehanna River at Conklin NY 42.0353 -75.8033 CLNN6 Wappingers Creek at Clinton Corners NY 41.8147 -73.7633 CMGN6 Chemung River at Chemung NY 42.0022 -76.6350 CMPN6 Cohocton River near Campbell NY 42.2525 -77.2169 CNDN6 Canandaigua Lake at Canandaigua Lake NY 42.8731 -77.2725 CNJN6 Canajoharie Creek near Canajoharie NY 42.8761 -74.6033 CNKN6 Sacandaga River at Conklingville Dam NY 43.3158 -73.9272 CNON6 Chenango River at Chenango Forks NY 42.2181 -75.8486 COHN6 Mohawk River at Cohoes NY 42.7853 -73.7081 CPNN6 Canandaigua Outlet near Chapin NY 42.9181 -77.2331 CRNN6 Chemung River at Corning NY 42.1464 -77.0578 CRTN6 Tioughnioga River at Cortland NY 42.6028 -76.1597 CZRN6 Great Chazy River at Perry Mills NY 45.0000 -73.5014 DDMN6 Mohawk River at Delta Dam NY 43.2786 -75.4267 DLGN6 East Canada Creek at Dolgeville NY 43.1014 -74.7708 EAGN6 Hoosic River at Eagle Bridge NY 42.9386 -73.3775 EBZN6 Cazenovia Creek near Ebenezer NY 42.8297 -78.7753 FLCN6 Chadakoin River at Falconer NY 42.1125 -79.2042 FSHN6 East Branch Delaware River near Fishs Eddy NY 41.9761 -75.1711 FTEN6 Hudson River at Fort Edward NY 43.2694 -73.5964 GBRN6 Schoharie Creek at Gilboa Bridge NY 42.3972 -74.4508 GDVN6 Buffalo Creek near Gardenville NY 42.8547 -78.7553 GILN6 Schoharie Creek at Gilboa Dam NY 42.3558 -74.4450 GNEN6 Chenango River at Greene NY 42.3244 -75.7717 GNVN6 Seneca Lake at Geneva NY 42.8617 -76.9811 GOWN6 Cattaraugus Creek at Gowanda NY 42.4639 -78.9353 GRBN6 Oatka Creek at Garbutt NY 43.0100 -77.7917 GVVN6 Mettawee River at Granville NY 43.4639 -73.2847 HDLN6 Sacandaga River at Stewarts Bridge NY 43.3114 -73.8678 HDYN6 Hudson River at Hadley NY 43.3189 -73.8447 HIKN6 West Canada Creek at Hinckley NY 43.3114 -75.1083 HLEN6 West Branch Delaware River at Hale Eddy NY 42.0031 -75.3839 HNYN6 Honeoye Creek near Honeoye Falls NY 42.9572 -77.5892 HOPN6 Sacandaga River at Hope NY 43.3528 -74.2708 HVDN6 East Branch Delaware River at Harvard NY 42.0247 -75.1203 ICYN6 Cayuga Lake at Ithaca NY 42.4458 -76.5125 INDN6 Indian River at Indian Lake NY 43.7556 -74.2764 INRN6 Indian River below Indian Lake NY 43.7564 -74.2675 KASN6 West Canada Creek at Kast Bridge NY 43.0689 -74.9886 KNGN6 Rondout Creek at Kingston NY 41.9222 -73.9700 LCSN6 Cayuga Creek near Lancaster NY 42.8900 -78.6453 LDYN6 Tioga River at Lindley NY 42.0286 -77.1325 LKGN6 Lake George at Lake George NY 43.8078 -73.4583 LTLN6 Mohawk River at Little Falls NY 43.0147 -74.7797 LVRN6 Onondaga Lake at Liverpool NY 43.1003 -76.2094 MCKN6 Moose River at Mckeever NY 43.6103 -75.1108 MCVN6 Hudson River at Mechanicville NY 42.8781 -73.6769 MDDN6 Schoharie Creek at Middleburgh NY 42.6000 -74.3375 MMDN6 Genesee River at Mt Morris Dam NY 42.7306 -77.9044 MRNN6 Esopus Creek at Mount Marion NY 42.0378 -73.9725 MTMP1 Delaware River at Port Jervis NY 41.3706 -74.6978 MTRN6 Esopus Creek at Cold Brook NY 42.0142 -74.2708 NCKN6 Hudson River at North Creek NY 43.7008 -73.9839 NEIN6 Oneida Creek at Oneida NY 43.0972 -75.6389 NMKN6 Normans Kill at Normanskill NY 42.6333 -73.8061 OKHN6 Catskill Creek at Oak Hill NY 42.4044 -74.1519 OLNN6 Allegheny River at Olean NY 42.0722 -78.4519 OWGN6 Susquehanna River at Owego NY 42.0972 -76.2667 OWSN6 Owasco Lake at Owasco Lake NY 42.8989 -76.5381 PBGN6 Saranac River at Plattsburgh NY 44.6817 -73.4717 PEPN6 East Branch Delaware at Pepacton Reservoir NY 42.0772 -74.9678 PIEN6 Raquette River at Piercefield NY 44.2347 -74.5722 POUN6 Hudson River at Poughkeepsie NY 41.6508 -73.9450 PRTN6 Genesee River at Portageville NY 42.5703 -78.0425 PTKN6 Poesten Kill River at Poestenkill NY 42.7333 -73.6333 PTVN6 Schoharie Creek at Prattsville NY 42.3194 -74.4369 RAPN6 Tonawanda Creek at Rapids NY 43.0931 -78.6364 RCKN6 Unadilla River at Rockdale NY 42.3778 -75.4064 RHRN6 Genesee River at Rochester NY 43.1806 -77.6278 RMEN6 Mohawk River at Rome NY 43.2644 -75.4367 RONN6 Rondout Creek at Rondout Reservoir NY 41.7992 -74.4300 ROSN6 Rondout Creek at Rosendale NY 41.8431 -74.0864 ROUN6 Lake Champlain at Rouses Point NY 44.9961 -73.3603 RSSN6 Kinderhook Creek at Rossman NY 42.3306 -73.7444 RVRN6 Schroon River at Riverbank NY 43.6094 -73.7381 RYVN6 Raquette River at Raymondville NY 44.8389 -74.9792 SACN6 Sacandaga River at Sacandaga Rsvr NY 43.3158 -73.9275 SCHN6 Mohawk River at Schenectady NY 42.8306 -73.9308 SCLN6 Raquette River at South Colton NY 44.5117 -74.8833 SHBN6 Chenango River at Sherburne NY 42.6786 -75.5108 SLMN6 Allegheny River at Salamanca NY 42.1564 -78.7156 SWRN6 Beaver River at Stillwater Reservoir NY 43.8972 -75.0514 SYLN6 Hudson River at Schuylerville NY 43.1097 -73.5783 TENN6 Tenmile River at Webatuck NY 41.6589 -73.5289 TRBN6 Mohawk River at Tribes Hill Lk 12 NY 42.9450 -74.2892 TRYN6 Hudson River at Troy NY 42.7522 -73.6894 UCAN6 Mohawk River at Utica NY 43.1086 -75.2222 UNDN6 Susquehanna River at Unadilla NY 42.3214 -75.3169 VSTN6 Susquehanna River at Vestal NY 42.0908 -76.0564 WALN6 West Branch Delaware River at Walton NY 42.1661 -75.1403 WAPN6 Wappingers Creek at Wappingers Falls NY 41.6531 -73.8731 WCRN6 Canisteo River at West Cameron NY 42.2222 -77.4181 WILN6 Ellicott Creek near Williamsville NY 42.9778 -78.7639 WLLN6 Genesee River at Wellsville NY 42.1222 -77.9575 WMRN6 West Canada Creek near Wilmurt NY 43.3661 -74.9581 WSRN6 Susquehanna River near Windsor NY 42.0747 -75.6381 WTFN6 Hudson River at Waterford NY 42.8292 -73.6667 WTHN6 Lake Champlain at Whitehall NY 43.6217 -73.4189 WVYN6 Susquehanna River at Waverly/Sayre NY 41.9847 -76.5014 ATHO1 Hocking River at Athens OH 39.3289 -82.0878 BEVW2 Ohio River at Belleville Lock OH 39.1186 -81.7425 BVLO1 Paint Creek at Bourneville OH 39.2636 -83.1669 CCNO1 Ohio River at Cincinnati OH 39.0944 -84.5111 CDIO1 Wills Creek at Cambridge OH 40.0144 -81.5872 CHCO1 Scioto River at Chillicothe OH 39.3414 -82.9711 COLO1 Scioto River at Columbus OH 39.9094 -83.0092 CPBO1 Maumee River at Napoleon OH 41.3831 -84.1286 CRCO1 Scioto River at Circleville OH 39.6014 -82.9553 CSHO1 Muskingum River at Coshocton OH 40.2483 -81.8731 DBVO1 Big Darby Creek at Darbyville OH 39.7006 -83.1103 DEFO1 Maumee River near Defiance OH 41.2792 -84.3867 DELO1 Olentangy River at Delaware OH 40.3550 -83.0672 DFCO1 Auglaize River near Defiance Power Plant OH 41.2375 -84.3992 DTNO1 Great Miami River at Dayton OH 39.7653 -84.1975 ELRO1 Black River at Elyria OH 41.3803 -82.1047 ELVO1 Ohio River at East Liverpool OH 40.6203 -80.5633 ENGO1 Stillwater River at Englewood OH 39.8703 -84.2861 ENTO1 Hocking River at Enterprise OH 39.5650 -82.4747 ETST6 Ohio River at East Livertest OH 40.6203 -80.5633 FDYO1 Blanchard River near Findlay OH 41.0558 -83.6881 FECO1 Eagle Creek above Findlay OH 40.9792 -83.6533 FTJO1 Auglaize River near Fort Jennings OH 40.9486 -84.2661 GERO1 Twin Creek near Germantown OH 39.6378 -84.4039 GRNO1 Raccoon Creek near Granville OH 40.0689 -82.5517 GRRO1 Maumee River near Grand Rapids OH 41.4167 -83.8667 HAMO1 Great Miami River at Hamilton OH 39.3911 -84.5722 HANO1 Ohio River at Hannibal OH 39.6672 -80.8661 INDO1 Cuyahoga River at Independence OH 41.3953 -81.6300 KILO1 Killbuck Creek near Killbuck OH 40.4811 -81.9864 KIMO1 Little Miami River at Kings Mills OH 39.3514 -84.2428 LARO1 Scioto River near Larue OH 40.5719 -83.3842 LEAO1 Mahoning River at Leavittsburg OH 41.2392 -80.8808 LLMO1 Little Miami River at Spring Valley OH 39.5833 -84.0303 LOCO1 Loramie Creek near Lockington OH 40.2144 -84.2439 MBGO1 Great Miami River below Miamisburg OH 39.6067 -84.2869 MCCO1 Muskingum River at Mcconnelsville OH 39.6450 -81.8500 MDTO1 Great Miami River near Middletown OH 39.5200 -84.4128 MELO1 Ohio River at Meldahl Dam OH 38.7983 -84.1731 MIAO1 Great Miami River at Miamitown OH 39.2161 -84.7028 MILO1 Huron River near Milan OH 41.3011 -82.6100 MLGO1 Little Miami River at Milford OH 39.1714 -84.2981 MLNO1 Tuscarawas River at Massillon OH 40.7703 -81.5242 MONO1 Saint Joseph River below Montpelier OH 41.5894 -84.6125 MRDO1 Mad River above Huffman OH 39.7972 -84.0886 MTAO1 Ohio River at Marietta Pumphouse OH 39.4094 -81.4572 MVEO1 Kokosing River at Mt. Vernon OH 40.4056 -82.5000 NCTO1 Tuscarawas River below Newcomerstown OH 40.2614 -81.6092 NCUW2 Ohio River near New Cumberland OH 40.5281 -80.6258 NEAO1 Licking River below Newark OH 40.0592 -82.3397 NHSO1 Nimishillen Creek near North Industry OH 40.7406 -81.3658 NKOO1 North Fork Licking River at Newark Ohio Street Bridge OH 40.0539 -82.3922 NVLI3 Saint Joseph River above Newville OH 41.3853 -84.8017 NWPO1 Tuscarawas River above New Philadelphia OH 40.4808 -81.4483 OLPO1 Cuyahoga River at Old Portage OH 41.1356 -81.5472 OTTO1 Blanchard River at Ottawa OH 41.0169 -84.0475 PERO1 East Fork Little Miami River at Perintown OH 39.1372 -84.2381 PHAO1 Eagle Creek at Phalanx Station OH 41.2611 -80.9544 PKTO1 Scioto River at Piketon OH 39.0700 -83.0197 PNVO1 Grand River at Painesville OH 41.7189 -81.2281 POMO1 Ohio River at Pomeroy OH 39.0272 -82.0319 PORO1 Ohio River at Portsmouth OH 38.7289 -82.9731 POWO1 Ohio River at Powhatan Point OH 39.8606 -80.7994 PRGO1 Scioto River near Prospect OH 40.4194 -83.1972 RFDO1 St. Marys River at Rockford OH 40.6947 -84.6467 RNOO1 Ohio River at Willow Island Lock OH 39.3603 -81.3208 SBVO1 Ohio River at Steubenville OH 40.3583 -80.6111 SGFO1 Mad River at Springfield OH 39.9231 -83.8703 SIDO1 Great Miami River at Sidney OH 40.2869 -84.1500 STRO1 Tiffin River near Stryker OH 41.5044 -84.4297 TAYO1 Great Miami River at Taylorsville OH 39.8728 -84.1642 TFFO1 Sandusky River at Tiffin OH 41.1142 -83.1797 TRYO1 Great Miami River at Troy OH 40.0403 -84.1978 UPPO1 Sandusky River near Upper Sandusky OH 40.8506 -83.2564 URVO1 Stillwater Creek at Uhrichsville OH 40.3861 -81.3472 VERO1 Vermilion River near Vermilion OH 41.3819 -82.3167 WBYO1 Chagrin River at Willoughby OH 41.6308 -81.4025 WDVO1 Portage River at Woodville OH 41.4494 -83.3614 WLVO1 Ohio River at Wellsville OH 40.5750 -80.6694 WRNO1 Mahoning River at Warren OH 41.2339 -80.8233 WRTO1 Olentangy River near Worthington OH 40.1103 -83.0319 WTVO1 Maumee River at Waterville OH 41.5000 -83.7128 WUNO1 Ohio Brush Creek above West Union OH 38.8036 -83.4211 WUNTS Ohio Brush Creek above West Union OH 38.8036 -83.4211 YGWO1 Mahoning River at Youngstown OH 41.1050 -80.6628 ZANO1 Muskingum River near Zanesville OH 39.9389 -82.0125 ALXO2 Washita River near Alex OK 34.9258 -97.7736 ANDO2 Washita River at Anadarko OK 35.0842 -98.2431 ANTO2 Kiamichi River near Antlers OK 34.2486 -95.6050 ARCT2 Red River at Arthur City OK 33.8750 -95.5017 AVAO2 Salt Fork Arkansas River near Alva OK 36.8150 -98.6478 AVTO2 Bird Creek at Avant OK 36.4850 -96.0600 BFFO2 Cimarron River near Buffalo OK 36.8519 -99.3150 BGSO2 Deep Fork River near Beggs OK 35.6739 -96.0683 BLKO2 Chikaskia River near Blackwell OK 36.8086 -97.2775 BLUO2 Blue River near Blue OK 33.9969 -96.2408 BRIO2 Canadian River near Bridgeport OK 35.5436 -98.3175 BVLO2 Caney River at Bartlesville OK 36.7556 -95.9719 BVRO2 Beaver River at Beaver OK 36.8222 -100.5189 CAGO2 Washita River near Carnegie OK 35.1172 -98.5636 CARO2 North Fork Red River near Carter OK 35.1681 -99.5069 CCKO2 Washita River near Chickasha OK 35.0856 -97.9597 CHYO2 Washita River near Cheyenne OK 35.6264 -99.6681 CLIO2 Washita River near Clinton OK 35.5308 -98.9667 CLRO2 Verdigris River near Claremore OK 36.3072 -95.6978 CLVO2 Canadian River near Calvin OK 34.9778 -96.2433 CNEO2 Clear Boggy Creek near Caney OK 34.2525 -96.2053 COMO2 Neosho River near Commerce OK 36.9286 -94.9572 CVLO2 Caney River near Collinsville OK 36.3947 -95.8100 DOVO2 Cimarron River near Dover OK 35.9517 -97.9142 DURO2 Washita River near Dickson OK 34.2333 -96.9761 ELDO2 Baron Fork River at Eldon OK 35.9211 -94.8383 ELNO2 North Canadian River at El Reno OK 35.5631 -97.9572 FBRO2 Beaver River near Felt OK 36.6297 -102.6811 FRSO2 Muddy Boggy Creek near Farris OK 34.2714 -95.9119 GLOO2 Glover River at Glover OK 34.0975 -94.9019 GSVT2 Red River near Gainesville OK 33.7278 -97.1597 GTRO2 Cimarron River near Guthrie OK 35.9206 -97.4256 GUCO2 Cottonwood Creek at Guthrie OK 35.8800 -97.4294 GYMO2 Beaver River near Guymon OK 36.7214 -101.4892 HEAO2 North Fork Red River near Headrick OK 34.6381 -99.1033 HRHO2 North Canadian River near Harrah OK 35.5003 -97.1936 HSKO2 Arkansas River near Haskell OK 35.8222 -95.6394 HVRO2 Wildhorse Creek near Hoover OK 34.5414 -97.2469 IDBO2 Little River near Idabel OK 33.9411 -94.7583 INOO2 Verdigris River near Inola OK 36.1647 -95.6189 JNKO2 Polecat Creek near Jenks OK 36.0103 -95.9933 KENO2 Cimarron River near Kenton OK 36.9267 -102.9586 KNGO2 Kingfisher Creek near Kingfisher OK 35.8706 -97.9325 KNRO2 Uncle John Creek at Kingfisher OK 35.8611 -97.9242 KNSO2 Flint Creek near Kansas OK 36.1864 -94.7067 LEPO2 Verdigris River near Lenapah OK 36.8511 -95.5858 LNDO2 Washita River at Lindsay OK 34.8181 -97.5983 MGMO2 Salt Fork Red River near Mangum OK 34.8583 -99.5083 MKGO2 Arkansas River near Muskogee OK 35.7694 -95.2969 NKHO2 Little Washita River near Ninnekah OK 34.9633 -97.8992 OKBO2 North Canadian River at Oklahoma City OK 35.5656 -97.3669 ONEO2 Cimarron River near Okeene OK 36.1133 -98.1572 OWSO2 Bird Creek near Owasso-Mingo OK 36.2483 -95.8669 PANO2 Poteau River near Panama OK 35.1656 -94.6528 PAWO2 Black Bear Creek at Pawnee OK 36.3436 -96.7992 PCYO2 Arkansas River near Ponca City OK 36.6933 -96.9300 PLVO2 Washita River near Pauls Valley OK 34.7547 -97.2511 PRCO2 Canadian River at Purcell OK 35.0139 -97.3472 PRKO2 Cimarron River near Perkins OK 35.9592 -97.0325 PTAO2 Poteau River near Poteau OK 35.0597 -94.6028 QUAO2 Spring River near Quapaw OK 36.9344 -94.7461 RAMO2 Caney River near Ramona OK 36.5089 -95.8417 RLSO2 Arkansas River at Ralston OK 36.5042 -96.7281 RNDO2 Deep Red Creek near Randlett OK 34.2208 -98.4528 SASO2 Little River near Sasakwa OK 34.9653 -96.5122 SEIO2 North Canadian River near Seiling OK 36.1833 -98.9208 SPCO2 Polecat Creek near Sapulpa OK 35.9883 -96.0819 SPEO2 Bird Creek near Sperry OK 36.2783 -95.9539 SWDO2 Cottonwood Creek near Seward OK 35.8136 -97.4781 SWNO2 North Canadian River near Shawnee OK 35.3328 -96.9597 TALO2 Illinois River near Tahlequah OK 35.9258 -94.9225 TCMO2 Little River near Tecumseh OK 35.1725 -96.9317 TGAO2 Canadian River near Taloga OK 36.0544 -98.9692 TLSO2 Arkansas River at Tulsa OK 36.1406 -96.0061 TONO2 Salt Fork Arkansas River at Tonkawa OK 36.6719 -97.3092 TRLO2 Red River near Terral OK 33.8786 -97.9342 UNIO2 Canadian River near Union City OK 35.3636 -97.9306 WAKO2 Beaver Creek at Waurika OK 34.1628 -98.0081 WANO2 Cimarron River near Waynoka OK 36.5172 -98.8792 WATO2 North Canadian River near Watonga OK 35.8119 -98.4206 WDWO2 North Canadian River at Woodward OK 36.4461 -99.3908 WETO2 North Canadian River near Wetumka OK 35.2656 -96.2058 WLTO2 East Cache Creek near Walters OK 34.3622 -98.2822 WTTO2 Illinois River near Watts OK 36.1300 -94.5719 YUKO2 North Canadian River near Yukon OK 35.5394 -97.7422 AGNO3 Rogue River near Agness OR 42.5806 -124.0583 ALBO3 Willamette River at Albany OR 44.6386 -123.1700 APRO3 Applegate River near Applegate OR 42.2417 -123.1422 ARWO3 Applegate River at Wilderville OR 42.3542 -123.4056 AURO3 Pudding River at Aurora OR 45.2333 -122.7503 AZAO3 Cow Creek near Azalea OR 42.8267 -123.1800 BEAO3 Nestucca River near Beaver OR 45.2667 -123.8458 BTYO3 Sprague River near Beatty OR 42.4478 -121.2386 CANO3 Molalla River near Canby OR 45.2442 -122.6875 CHTO3 Chetco River near Brookings OR 42.1236 -124.1861 COCO3 Clackamas River near Oregon City OR 45.3797 -122.5781 COQO3 Coquille River at Coquille OR 43.1578 -124.1817 CORO3 Willamette River at Corvallis OR 44.5664 -123.2569 CWMO3 Cow Creek at Glendale OR 42.7453 -123.5172 DEEO3 Deer Creek at Roseburg OR 43.2192 -123.2792 DLLO3 Tualatin River near Dilley OR 45.4747 -123.1250 DONO3 Donner Und Blitzen River near Frenchglen OR 42.7911 -118.8667 ECDO3 Elk Creek near Drain OR 43.6408 -123.2983 EGLO3 Rogue River at Eagle Point OR 42.5250 -122.8417 EKTO3 Umpqua River near Elkton OR 43.5861 -123.5542 ELKO3 Elk Creek near Trail OR 42.6750 -122.7439 ESTO3 Clackamas River at Estacada OR 45.3006 -122.3544 EUGO3 Willamette River at Eugene OR 44.0525 -123.0828 FRMO3 Tualatin River at Farmington OR 45.4494 -122.9503 FSSO3 Nehalem River near Foss OR 45.7036 -123.7550 GIBO3 Umatilla River near Gibbon OR 45.7197 -118.3222 GLIO3 North Umpqua River near Glide OR 43.3200 -122.8092 GOSO3 Coast Fk Willamette River at Goshen OR 43.9806 -122.9653 GRAO3 Rogue River at Grants Pass OR 42.4306 -123.3167 HARO3 Willamette River at Harrisburg OR 44.2714 -123.1739 HODO3 Hood River near Hood River OR 45.6547 -121.5489 IMNO3 Imnaha River at Imnaha OR 45.5625 -116.8339 JASO3 Middle Fk Willamette River at Jasper OR 43.9986 -122.9056 JFFO3 Santiam River at Jefferson OR 44.7147 -123.0142 JHNO3 John Day River near John Day OR 44.4194 -118.9028 KRBO3 Illinois River near Kerby OR 42.2314 -123.6639 LGNO3 Grande Ronde River near Perry OR 45.3544 -118.1914 MCMO3 S Yamhill River at Mcminnville OR 45.2056 -123.1825 MCZO3 Mckenzie River near Walterville OR 44.0703 -122.7700 MEHO3 N Santiam River at Mehama OR 44.7892 -122.6186 MFDO3 Bear Creek at Medford OR 42.3239 -122.8656 MNRO3 Long Tom River at Monroe OR 44.3131 -123.2964 MODO3 Deschutes River at Moody OR 45.6222 -120.9014 MONO3 North Fork John Day River at Monument OR 44.8139 -119.4306 MPLO3 Siuslaw River near Mapleton OR 44.0633 -123.8828 MYNO3 North Fork Coquille River near Myrtle Point OR 43.0681 -124.1081 MYPO3 South Fork Coquille River at Myrtle Point OR 43.0664 -124.1433 OCUO3 Willamette River at Oregon City Above The Falls OR 45.3481 -122.6206 ORCO3 Willamette River below Oregon City Below The Falls OR 45.3575 -122.6108 OWYO3 Owyhee River below Owyhee Dam OR 43.6547 -117.2544 PDTO3 Umatilla River at Pendleton OR 45.6722 -118.7917 PHIO3 Marys River near Philomath OR 44.5250 -123.3344 POWO3 South Fork Coquille River at Powers OR 42.8917 -124.0694 PRTO3 Willamette River at Portland OR 45.5183 -122.6711 PWDO3 Powder River at Baker OR 44.7683 -117.8306 RDLO3 Cow Creek near Riddle OR 42.9236 -123.4283 REEO3 Umpqua River at Reedsport OR 43.7050 -124.0950 RSBO3 South Umpqua River at Roseburg OR 43.2111 -123.3497 RYGO3 Rogue River below Gold Ray OR 42.4375 -122.9861 SCRO3 Steamboat Creek near Glide OR 43.3500 -122.7278 SERO3 John Day River at Service Creek OR 44.7939 -120.0056 SHNO3 Columbia River at St. Helens OR 45.8636 -122.9117 SILO3 Siletz River at Siletz OR 44.7153 -123.8886 SLMO3 Willamette River at Salem OR 44.9442 -123.0425 SNDO3 Sandy River near Bull Run OR 45.4486 -122.2450 SPRO3 Mohawk River near Springfield OR 44.0928 -122.9567 SURO3 South Umpqua River at Riddle OR 42.9519 -123.3347 SUVO3 Luckiamute River near Suver OR 44.7825 -123.2347 SYCO3 Johnson Creek at Sycamore OR 45.4775 -122.5083 TIDO3 Alsea River near Tidewater OR 44.3878 -123.8333 TILO3 South Umpqua River at Tiller OR 42.9306 -122.9472 TLMO3 Wilson River near Tillamook OR 45.4758 -123.7250 TRAO3 Trask River near Tillamook OR 45.4464 -123.7092 TRYO3 Grande Ronde River at Troy OR 45.9464 -117.4483 VALO3 Malheur River near Vale OR 43.9889 -117.2194 VENO3 Nehalem R near Vernonia OR 45.8069 -123.2819 VIDO3 Mckenzie River near Vida OR 44.1250 -122.4694 WMSO3 Williamson River below Chiloquin OR 42.5650 -121.8783 WNRO3 North Umpqua River near Winchester OR 43.2708 -123.4114 WSLO3 Tualatin River at West Linn OR 45.3508 -122.6750 WSNO3 South Umpqua River near Winston OR 43.1333 -123.3972 WTLO3 S Santiam River at Waterloo OR 44.4978 -122.8219 ACMP1 Allegheny River at Cw Bill Young Dam PA 40.5361 -79.8150 ALNP1 Jordan Creek at Allentown PA 40.6231 -75.4828 APAP1 Little Lehigh at Allentown 10Th St Bridge PA 40.5964 -75.4744 BDDP1 Monongahela River at Braddock PA 40.3925 -79.8603 BEAP1 Beaver River at Beaver Falls PA 40.7633 -80.3153 BECP1 Bald Eagle Creek near Beech Creek Station PA 41.0808 -77.5497 BETP1 Lehigh River at Bethlehem PA 40.6153 -75.3792 BMBP1 Susquehanna River at Bloomsburg PA 40.9958 -76.4208 BREP1 Schuylkill River at Berne PA 40.5225 -75.9986 CDFP1 Brandywine Creek at Chadds Ford PA 39.8697 -75.5936 CEDP1 Pine Creek at Cedar Run PA 41.5217 -77.4478 CHRP1 Monongahela River near Charleroi PA 40.1494 -79.9017 CHSP1 Chester Creek near Chester PA 39.8689 -75.4086 CLLP1 Youghiogheny River at Connellsville PA 40.0175 -79.5939 CLNP1 Allegheny River at Clinton PA 40.7167 -79.5811 CNFP1 Youghiogheny River near Confluence PA 39.8275 -79.3728 COKP1 Clarion River at Cooksburg PA 41.3306 -79.2092 CPHP1 Yellow Breeches Creek near Camp Hill PA 40.2247 -76.8983 DANP1 Susquehanna River at Danville PA 40.9581 -76.6194 DSHP1 Ohio River at Dashields PA 40.5492 -80.2058 DWNP1 East Branch Brandywine Creek below Downingtown PA 39.9686 -75.6736 ECMP1 Little Conemaugh River at East Conemaugh PA 40.3458 -78.8828 ELRP1 Allegheny River at Eldred PA 41.9633 -78.3864 ELZP1 Monongahela River near Elizabeth PA 40.2622 -79.9014 FDLP1 Stonycreek River at Ferndale PA 40.2856 -78.9208 FREP1 Allegheny River at Freeport PA 40.6847 -79.6675 FRKP1 Allegheny River at Franklin PA 41.3894 -79.8206 GRAP1 Perkiomen Creek at Graterford PA 40.2294 -75.4519 GYLP1 Monongahela River at Grays Landing PA 39.8250 -79.9231 HARP1 Susquehanna River at Harrisburg PA 40.2547 -76.8864 HERP1 Swatara Creek near Hershey PA 40.2983 -76.6681 HGSP1 Conodoguinet Creek near Hogestown PA 40.2522 -77.0211 HTVP1 Swatara Creek at Harper Tavern PA 40.4025 -76.5775 HUJP1 Juniata River at Huntingdon PA 40.4847 -78.0192 HWYP1 Lackawaxen River at Hawley PA 41.4761 -75.1725 ILTP1 West Branch Susquehanna River at Milton PA 41.0186 -76.8653 JHNP1 Clarion River at Johnsonburg PA 41.4861 -78.6786 JHSP1 Conemaugh River near Johnstown PA 40.3414 -78.9261 JRSP1 West Branch Susquehanna River at Jersey Shore PA 41.2022 -77.2514 KARP1 West Branch Susquehanna River at Karthaus PA 41.1175 -78.1092 KTTP1 Allegheny River at Kittanning PA 40.8203 -79.5317 LHTP1 Lehigh River at Lehighton PA 40.8292 -75.7056 LHVP1 West Branch Susquehanna River at Lock Haven PA 41.1381 -77.4422 LNCP1 Conestoga River at Lancaster PA 40.0500 -76.2775 LNGP1 Neshaminy Creek at Langhorne PA 40.1739 -74.9572 LOYP1 Loyalsock Creek at Loyalsockville PA 41.3250 -76.9128 LWBP1 West Branch Susquehanna River at Lewisburg PA 40.9681 -76.8736 LWSP1 Juniata River at Lewistown PA 40.5944 -77.5828 LWVP1 Cowanesque River above Lawrenceville PA 41.9967 -77.1403 MAXP1 Monongahela River at Maxwell PA 40.0017 -79.9611 MCYP1 West Branch Susquehanna River at Muncy PA 41.2056 -76.8014 MEDP1 French Creek at Meadville PA 41.6325 -80.1597 MFDP1 Tioga River at Mansfield PA 41.7969 -77.0806 MGYP1 Ohio River at Montgomery PA 40.6472 -80.3889 MHPP1 Susquehanna River at Meshoppen PA 41.6072 -76.0506 MIDP1 Swatara Creek at Middletown PA 40.2000 -76.7167 MNSP1 Brodhead Creek at Minisink Hills PA 40.9986 -75.1431 MONP1 Towanda Creek at Monroeton PA 41.7069 -76.4850 MOSP1 Allegheny River at Mosgrove PA 40.8944 -79.4764 MPLP1 Juniata River at Mapleton Depot PA 40.3922 -77.9353 MRTP1 Susquehanna River at Marietta PA 40.0544 -76.5311 MTGP1 West Branch Susquehanna River at Montgomery PA 41.1694 -76.8747 MTST6 Monongahela River at Maxwell Test PA 40.0022 -79.9611 NATP1 Allegheny River at Natrona PA 40.6153 -79.7186 NCSP1 Shenango River at New Castle PA 41.0178 -80.3628 NPTP1 Juniata River at Newport PA 40.4783 -77.1294 NRSP1 Schuylkill River at Norristown PA 40.1111 -75.3472 OFRP1 Lackawanna River at Old Forge PA 41.3592 -75.7447 OPLP1 Youghiogheny River at Ohiopyle PA 39.8708 -79.4931 PADP1 Schuylkill River at Philadelphia PA 39.9678 -75.1889 PARP1 Allegheny River at Parker PA 41.1006 -79.6814 PMRP1 Monongahela River at Point Marion PA 39.7269 -79.9117 PNCP1 Penns Creek near Penns Creek PA 40.8667 -77.0486 PNXP1 Mahoning Creek at Punxsutawney PA 40.9439 -78.9672 PTNP1 Schuylkill River at Pottstown PA 40.2417 -75.6519 PTTP1 Ohio River at Pittsburgh PA 40.4394 -80.0108 RDRP1 Schuylkill River at Reading PA 40.3347 -75.9367 RDYP1 Clarion River at Ridgway PA 41.4208 -78.7361 RMRP1 Allegheny River at Rimer PA 40.9583 -79.5472 ROVP1 West Branch Susquehanna River at Renovo PA 41.3244 -77.7508 RSSP1 Conewango Creek at Russell PA 41.9381 -79.1333 SBYP1 Susquehanna River near Sunbury PA 40.8344 -76.8269 SHOP1 Bush Kill River at Shoemakers PA 41.0881 -75.0381 SHRP1 Allegheny River at Sharpsburg PA 40.4875 -79.9153 SLYP1 Aughwick Creek at Shirleysburg PA 40.2819 -77.8908 SMDP1 Sherman Creek at Shermans Dale PA 40.3233 -77.1692 SNCP1 Redbank Creek at Saint Charles PA 40.9944 -79.3944 SNNP1 Sinnemahoning Creek at Sinnemahoning PA 41.3172 -78.1033 SPKP1 Little Juniata River at Spruce Creek PA 40.6125 -78.1408 STSP1 Youghiogheny River at Sutersville PA 40.2403 -79.8067 SWDP1 Conemaugh River at Seward PA 40.4192 -79.0264 SXTP1 Raystown Branch Juniata River at Saxton PA 40.2158 -78.2656 TGJP1 Tioga River at Tioga Junction PA 41.9525 -77.1156 TNKP1 Tunkhannock Creek at Tunkhannock PA 41.5583 -75.8950 TOWP1 Susquehanna River at Towanda PA 41.7653 -76.4411 VGFP1 Kiskiminetas River at Vandergrift PA 40.6044 -79.5522 WATP1 West Branch Susquehanna River at Watsontown PA 41.0819 -76.8636 WBRP1 Susquehanna River near Wilkes-Barre PA 41.2528 -75.8792 WHKP1 Allegheny River at West Hickory PA 41.5708 -79.4081 WIBP1 Frankstown Branch of the Juniata River at Williamsburg PA 40.4631 -78.2000 WILP1 West Branch Susquehanna River at Williamsport PA 41.2361 -76.9969 WNTP1 Lehigh River at Walnutport PA 40.7569 -75.6033 WRRP1 Allegheny River at Warren PA 41.8439 -79.1500 AREP4 Rio Grande De Arecibo near San Pedro PR 18.4228 -66.6994 CAGP4 Rio Grande De Loiza above Caguas PR 18.2425 -66.0094 CIAP4 Rio Grande De Manati above Ciales PR 18.3239 -66.4600 COAP4 Rio Coamo at Hwy 14 PR 18.0833 -66.3544 COMP4 Rio De La Plata at Comerio PR 18.2231 -66.2250 GURP4 Rio Gurabo above Gurabo PR 18.2583 -65.9681 HORP4 Rio Guanajibo At Hormigueros near Hormigueros PR 18.1433 -67.1492 MANP4 Rio Grande De Manati above Manati PR 18.4311 -66.5269 MOCP4 Rio Culebrinas near Moca PR 18.3617 -67.0925 RPOP4 Rio Piedras above Metro-R Piedras(Hato Rey) PR 18.4094 -66.0694 SEBP4 Rio Grande De Anasco above San Sebastian PR 18.2847 -67.0514 TOAP4 Rio De La Plata at Hwy 2 Toa Alta PR 18.4114 -66.2608 VGBP4 Rio Cibuco at Vega Baja PR 18.4481 -66.3747 CRAR1 Pawtuxet River at Cranston RI 41.7508 -71.4456 WOOR1 Blackstone River at Woonsocket RI 42.0061 -71.5036 ALTS1 Broad River at Alston SC 34.2431 -81.3197 BBGS1 Broad River near Blacksburg SC 35.1239 -81.5881 BCRS1 Black Creek at Quinby SC 34.2436 -79.7450 BDVS1 Broad River at Diversion Canal Columbia SC 34.0333 -81.0686 BLRS1 Broad River at Blair SC 34.3944 -81.4000 BMBS1 South Fork Edisto River near Bamberg SC 33.3369 -81.0189 BVLS1 Scape Ore Swamp near Bishopville-Scape Ore Swamp SC 34.1506 -80.3050 CCKS1 Cedar Creek near Gadsden SC 33.8161 -80.8275 CEAS1 Congaree River at Carolina Eastman SC 33.8758 -81.0161 CHAS1 Saluda River at Chappells SC 34.1744 -81.8642 CHDS1 Savannah River at Clarks Hill Lake SC 33.6611 -82.2000 CHES1 Pee Dee River at Cheraw SC 34.7083 -79.8750 CHPS1 Saluda River at Lake Greenwood Dam SC 34.1689 -81.9083 CMDS1 Wateree River near Camden SC 34.2444 -80.6542 CNWS1 Waccamaw River at Conway SC 33.8297 -79.0439 COLS1 Congaree River at Columbia SC 33.9931 -81.0500 DENS1 South Fork Edisto River near Denmark SC 33.3931 -81.1333 EFFS1 Lynches River at Effingham SC 34.0514 -79.7542 ESTS1 Wateree River below Eastover SC 33.8283 -80.6206 FTMS1 Upper Santee River at Trezesvants Landing SC 33.7311 -80.6286 GADS1 Congaree River at Congaree Nat Monument SC 33.8106 -80.8672 GALS1 Little Pee Dee River at Galivants Ferry SC 34.0569 -79.2472 GILS1 Gills Creek at Columbia SC 33.9894 -80.9744 GIVS1 Edisto River near Givhans Ferry SC 33.0272 -80.3922 GSLS1 Saluda River near Greenville SC 34.8422 -82.4808 IRMS1 Saluda River at Lake Murray SC 34.0519 -81.2208 JAMS1 Santee River near Jamestown SC 33.3047 -79.6783 KINS1 Black at Kingstree SC 33.6611 -79.8361 MCBS1 Black Creek near Mcbee SC 34.5139 -80.1833 MODS1 Stevens Creek near Modoc SC 33.7292 -82.1819 MURS1 Saluda River below Lake Murray Dam SC 34.0508 -81.2097 ORBS1 North Fork Edisto River at Orangeburg SC 33.4833 -80.8736 PASS1 Broad River at Parr Shoals SC 34.2611 -81.3319 PDES1 Great Pee Dee River at Pee Dee SC 34.2042 -79.5486 PNVS1 Lake Marion at Lake Marion SC 33.4500 -80.1639 PVLS1 Santee River at Pineville SC 33.4542 -80.1417 RBGS1 Rocky Branch Creek Tributary above Gervais Street SC 34.0067 -81.0217 RBPS1 Rocky Branch Creek above Pickens Street SC 33.9958 -81.0219 RBWS1 Rocky Branch Creek at Whaley Street SC 33.9875 -81.0275 SANS1 Congaree River at Sandy Run SC 33.8089 -80.9019 SLUS1 Saluda River near Columbia SC 34.0139 -81.0881 WATS1 Wateree River at Lake Wateree SC 34.3347 -80.7031 WEPS1 Saluda River at West Pelzer SC 34.6433 -82.4542 WHMS1 Enoree River at Whitmire SC 34.5092 -81.5983 AFCS2 Foot Creek near Aberdeen SD 45.5192 -98.5772 AGCS2 Silver Creek at Sioux Falls SD 43.6022 -96.7314 ATNS2 James River at Ashton SD 44.9983 -98.4806 BBDS2 Missouri River at Big Bend Dam SD 44.0383 -99.4458 BCPS2 Big Coulee Creek near Peever SD 45.4875 -96.9581 BGCS2 Whetstone River near Big Stone City SD 45.2917 -96.4872 BRCS2 Big Sioux River near Bruce SD 44.4675 -96.8872 BRKS2 Big Sioux River near Brookings SD 44.1803 -96.7492 BSWS2 Big Sioux River below Watertown SD 44.8478 -97.0492 BWSW4 Belle Fourche River at Wy-Sd State Line SD 44.7497 -104.0469 CACS2 Little Missouri River at Camp Crook SD 45.5481 -103.9711 CANS2 Big Sioux River near Canton SD 43.3894 -96.5231 CBLS2 Lake Francis Case at Chamberlain SD 43.8161 -99.3269 CCAS2 Choteau Creek near Avon SD 42.9233 -98.1058 CMBS2 James River near Columbia SD 45.6036 -98.3100 COSS2 Split Rock Creek near Corson SD 43.6164 -96.5650 CSWS2 Big Sioux River near Castlewood SD 44.7317 -97.0444 DERS2 Big Sioux River near Dell Rapids SD 43.7906 -96.7453 DVSS2 Vermillion River near Davis SD 43.2372 -96.9833 EMSS2 Belle Fourche River near Elm Springs SD 44.3697 -102.5656 ERFS2 Elm River near Frederick SD 45.8375 -98.7017 FCRS2 Flandreau Creek near Flandreau SD 44.0628 -96.4853 FLAS2 Big Sioux River at Flandreau SD 44.0536 -96.5936 FLOS2 Big Sioux River near Florence SD 45.1808 -97.1858 FORS2 James River near Forestburg SD 43.9739 -98.0706 FRDS2 Missouri River at Fort Randall Dam SD 43.0681 -98.5542 FRMS2 Missouri River at Farm Island SD 44.3342 -100.2650 FTHS2 Moreau River near Faith SD 45.1978 -102.1561 FTPS2 Bad River near Fort Pierre SD 44.3267 -100.3839 GRWS2 Missouri River near Greenwood SD 42.9053 -98.3494 GYVS2 Missouri River near Gayville SD 42.8503 -97.2200 HTFS2 Skunk Creek near Hartford SD 43.6361 -96.9000 HURS2 James River at Huron SD 44.3636 -98.1989 ID8S2 Turtle Creek at Redfield SD 44.8833 -98.5128 JRMS2 James River at Mitchell SD 43.6589 -97.9189 JSLS2 James River above Hecla 4Nnw SD 45.9364 -98.1739 KDKS2 White River near Kadoka SD 43.7525 -101.5244 KMPS2 Lake Kampeska near Watertown SD 44.9172 -97.1872 LFIS2 Missouri River at La Framboise Island SD 44.3519 -100.3586 LIES2 Grand River near Little Eagle SD 45.6578 -100.8178 LVSS2 Little Vermillion River near Salem SD 43.7942 -97.3672 MCHS2 James River near Mitchell SD 43.7025 -97.9675 MIDS2 Bad River near Midland SD 44.0669 -101.1600 MTVS2 Firesteel Creek near Mount Vernon SD 43.7764 -98.2453 OACS2 White River near Oacoma SD 43.7483 -99.5561 ORDS2 Elm River near Ordway SD 45.5622 -98.4125 PCPS2 Platte Creek near Platte SD 43.3272 -98.9703 PIES2 Missouri River at Oahe Dam SD 44.4583 -100.3903 PIRS2 Missouri River at Pierre SD 44.3731 -100.3675 PKRS2 West Fork Vermillion River near Parker SD 43.4156 -97.2050 PLNS2 Cheyenne River near Plainview SD 44.5292 -101.9300 PVRS2 Little Minnesota River near Peever SD 45.6158 -96.8756 RAUS2 Mud Creek near Rauville SD 45.0083 -97.1058 RFDS2 James River near Redfield SD 44.9106 -98.4717 RMNS2 East Fork Vermillion near Ramona SD 44.1097 -97.3869 RVLS2 South Branch Mud Creek near Rauville SD 44.9531 -97.1064 SBFS2 Belle Fourche River near Sturgis SD 44.5131 -103.1364 SCCS2 Skunk Creek near Chester SD 43.8483 -96.8364 SCOS2 James River near Scotland SD 43.1858 -97.6353 SFDS2 James River near Stratford SD 45.2417 -98.3911 SFLS2 Big Sioux River at Sioux Falls 60Th Street SD 43.6008 -96.7403 SFMS2 Big Sioux River at Sioux Falls Maple Street SD 43.5731 -96.7639 SIFS2 Skunk Creek at Sioux Falls SD 43.5336 -96.7906 SNKS2 Snake Creek near Ashton SD 44.9592 -98.5153 SPGS2 Missouri River at Springfield SD 42.8558 -97.8850 SXFS2 Big Sioux River at Sioux Falls North Cliff SD 43.5669 -96.7111 VERS2 Vermillion River near Vermillion SD 42.8172 -96.9239 VRPS2 East Fork Vermillion River near Parker SD 43.4453 -97.1094 WASS2 Cheyenne River near Wasta SD 44.0811 -102.4008 WAVS2 Big Sioux River at Western Ave SD 43.5011 -96.7486 WBSS2 Big Sioux River near Watertown SD 44.9425 -97.1458 WBWS2 Big Sioux River at Watertown - Broadway Avenue SD 44.8894 -97.1186 WCCS2 Willow Creek near Crooks SD 43.6308 -96.8269 WESS2 Elm River near Westport SD 45.6561 -98.4967 WHIS2 Moreau River near Whitehorse SD 45.2558 -100.8425 WHRS2 White River near White River SD 43.7139 -100.6847 WKAS2 Vermillion River near Wakonda SD 42.9903 -96.9633 WKPS2 Oak Creek near Wakpala SD 45.7119 -100.5589 WTRS2 Big Sioux River above Watertown SD 45.0061 -97.1647 YANS2 Missouri River at Yankton SD 42.8661 -97.3936 YNNS2 James River above Yankton SD 42.9958 -97.3694 ACIT1 Cumberland River at Ashland City TN 36.2706 -87.0761 ACST1 Sycamore Creek near Ashland City TN 36.3200 -87.0511 ALPT1 West Fork Obey River near Alpine TN 36.3969 -85.1744 ANTT1 Mill Creek near Antioch TN 36.0817 -86.6806 ARLT1 Loosahatchie River at Arlington TN 35.3108 -89.6394 ARTT1 Powell River near Arthur Tn TN 36.5417 -83.6303 BDXT1 Cumberland River near Bordeaux TN 36.1831 -86.8322 BELT1 Harpeth River at Bellevue TN 36.0544 -86.9283 BMDT1 Richland Creek at Belle Meade TN 36.1017 -86.8681 BOGT1 Obion River near Bogota TN 36.1350 -89.4317 BORT1 Whites Creek at Bordeaux TN 36.2175 -86.8203 BPYT1 Cumberland River at Briley Pkwy TN 36.1833 -86.8653 BVRT1 Hatchie River near Bolivar TN 35.2753 -88.9767 CHAT1 Tennessee River at Chattanooga @ Walnut St. Bridge TN 35.0561 -85.3064 CHKT1 South Chickamauga near Chickamauga TN 35.0136 -85.2106 CKVT1 Cumberland River at Clarksville TN 36.5222 -87.3778 CLAT1 Cumberland River at Celina TN 36.5542 -85.5144 CLNT1 Tennessee River at Clifton TN 35.3875 -87.9861 CMTT1 Cypress Creek near Camden TN 36.0469 -88.0758 CNVT1 Duck River at Centerville TN 35.7842 -87.4600 COLT1 Duck River at Columbia TN 35.6181 -87.0325 CTHT1 Cumberland River at Carthage TN 36.2481 -85.9553 DOET1 Doe at Elizabethton TN 36.3444 -82.2103 DONT1 Stones River near Donelson TN 36.1864 -86.6328 DOVT1 Cumberland River at Dover TN 36.4906 -87.8389 DYET1 North Fork Forked Deer River at Dyersburg TN 36.0297 -89.3869 EDWT1 Cumberland River near Edenwold TN 36.2875 -86.6883 EMBT1 Nolichucky River at Embreeville Tn TN 36.1764 -82.4575 FLTT1 Buffalo River above Flat Woods TN 35.4958 -87.8328 FRAT1 Harpeth River at Franklin TN 35.9206 -86.8656 FYTT1 Elk River above Fayetteville TN 35.1344 -86.5397 GDLT1 Mansker Creek at Goodlettsville TN 36.3389 -86.7178 GERT1 Wolf River at Germantown TN 35.1161 -89.8014 HBFT1 Harpeth River below Franklin TN 35.9472 -86.8833 HLST1 S.F. Fork Forked Deer River near Halls TN 35.9294 -89.3897 HMLT1 Duck River near Hurricane Mills TN 35.9283 -87.7406 HNTT1 Cumberland River at Hunters Point TN 36.2992 -86.2636 HTGT1 Cumberland River near Hermitage TN 36.1917 -86.6653 IRCT1 Shoal Creek near Iron City TN 35.0242 -87.5789 JAGT1 East Fork Obey River above Jamestown TN 36.4161 -85.0264 JKNT1 S.F. Forked Deer River at Jackson TN 35.6175 -88.8522 KINT1 Harpeth River near Kingston Springs TN 36.1217 -87.0989 KNOT1 Tennessee River at Knoxville TN 35.9458 -83.9467 LAST1 East Fork Stones River near Lascassas TN 35.9186 -86.3336 LBVT1 Buffalo River near Lobelville TN 35.8122 -87.7789 MCST1 Duck River below Manchester TN 35.4708 -86.1217 MEMT1 Mississippi River at Memphis TN 35.1231 -90.0775 MLTT1 Duck River above Milltown TN 35.5761 -86.7786 MLVT1 Mansker Creek near Millersville TN 36.3575 -86.7250 MUGT1 West Fork Stones River above Murfreesboro TN 35.9028 -86.4300 NAST1 Cumberland River at Nashville TN 36.1614 -86.7728 NBCT1 Browns Creek at Tennessee State Fairgrounds TN 36.1297 -86.7611 NEPT1 Pigeon River at Newport Tn TN 35.9606 -83.1744 NJNT1 Tennessee River at Johnsonville TN 36.0178 -88.0042 NLVT1 Mill Creek near Nolensville TN 36.0092 -86.7014 NOMT1 North Fork Obion River near Martin TN 36.4053 -88.8547 NRCT1 Richland Creek at Nashville TN 36.1511 -86.8544 NSRT1 Dry Creek at Edenwold TN 36.2844 -86.7064 NWPT1 French Broad River near Newport Tn TN 35.9817 -83.1611 OAKT1 Emory River at Oakdale Tn TN 35.9831 -84.5581 OBNT1 Obion River near Obion TN 36.2408 -89.2175 OMOT1 Cumberland River at Omohundro Water Plant TN 36.1653 -86.7214 PELT1 Elk River near Pelham TN 35.2967 -85.8697 PICT1 Tennessee River at Pickwick Dam Tailwater TN 35.0706 -88.2506 PKDT1 Tennessee River at Pickwick Dam Headwater TN 35.0706 -88.2506 PLKT1 Richland Creek above Pulaski TN 35.1950 -87.0639 PNBT1 Cumberland River at Pennington Bend TN 36.2353 -86.7125 PORT1 Red River at Port Royal TN 36.5539 -87.1419 POTT1 Duck River near Pottsville TN 35.6308 -86.8619 PRVT1 Tennessee River at Perryville TN 35.6247 -88.0389 PSPT1 Elk River near Prospect TN 35.0142 -86.9947 RLTT1 Hatchie River at Rialto TN 35.6383 -89.6089 ROST1 Wolf River near Rossville TN 35.0542 -89.5408 SAVT1 Tennessee River at Savannah TN 35.2247 -88.2569 SEVT1 Little Pigeon River above Sevierville TN 35.8783 -83.5778 SHET1 Duck River at Shelbyville TN 35.4828 -86.4625 SHVT1 Duck River near Shelbyville TN 35.4803 -86.4992 SVCT1 Sevenmile Creek at Blackman Road - Nashville TN 36.0725 -86.7333 TAZT1 Clinch River above Tazewell TN 36.4250 -83.3983 TPTT1 Mississippi River at Tiptonville TN 36.3436 -89.5181 WBNT1 Mill Creek near Woodbine TN 36.1178 -86.7189 WCRT1 Whties Creek at Whites Creek TN 36.2739 -86.8169 WHTT1 Sequatchie River near Whitwell TN 35.2064 -85.4972 WRTT1 Wartrace Creek near Wartrace TN 35.5272 -86.3403 WTTT1 Garrison Fork near Wartrace TN 35.5117 -86.3239 ABAT2 Hubbard Creek below Albany TX 32.7328 -99.1403 ABTT2 Barton Creek at Austin Loop 360 TX 30.2444 -97.8019 ABYT2 Clear Fork Brazos River near Fort Griffin TX 32.9344 -99.2242 ACET2 San Diego Creek near Alice TX 27.7478 -98.0828 ACRT2 Colorado River at Austin TX 30.2469 -97.6800 ADDT2 South Mayde Creek at Addicks Reservoir TX 29.7911 -95.6233 AICT2 San Fernando Creek near Alice TX 27.7722 -98.0333 AIRT2 Halls Bayou at Airline Drive TX 29.8847 -95.3958 AJCT2 Johnson Creek at Arlington TX 32.7167 -97.0833 ALNT2 Chocolate Bayou near Alvin TX 29.3692 -95.3206 ALOT2 Angelina River near Alto TX 31.6694 -94.9567 AMAT2 Canadian River near Amarillo TX 35.4703 -101.8792 AMTT2 Double Mountain Fork Brazos River near Aspermont TX 33.0081 -100.3339 AQLT2 Brazos River near Aquilla TX 31.8122 -97.2975 ARGT2 Rush Creek near Arlington TX 33.1344 -98.6133 ARTT2 Salt Fork Brazos River near Aspermont TX 33.3339 -100.2378 ASRT2 Nueces River near Asherton TX 28.5000 -99.6817 ATBT2 Attoyac Bayou near Chireno TX 31.5042 -94.3042 ATIT2 Onion Creek at Onion Ck Hwy 183 TX 30.1778 -97.6883 ATOT2 Neches River near Alto TX 31.5792 -95.1653 AVIT2 Johnson Creek near Arlington TX 32.7500 -97.0667 AYIT2 Ayish Bayou near San Augustine TX 31.3961 -94.1508 BACT2 Colorado River near Bay City TX 28.9739 -96.0122 BAMT2 Elm Creek at Ballinger TX 31.7492 -99.9475 BBBT2 Brays Bayou at Bellaire Boulevard TX 29.6892 -95.5522 BBMT2 Buffalo Bayou at Milam Drive TX 29.7639 -95.3583 BBST2 Buffalo Bayou at Shepherd Drive TX 29.7600 -95.4083 BBZT2 Brazos River near Bryan TX 30.6267 -96.5439 BCNT2 Big Creek near Needville TX 29.4764 -95.8125 BDAT2 Medina River at Medina River At Bandera TX 29.7236 -99.0697 BEAT2 Neches River near Beaumont TX 30.1331 -94.0964 BEKT2 Sabine River near Beckville TX 32.3272 -94.3533 BEMT2 Mill Creek near Bellville TX 29.8808 -96.2050 BFAT2 Rio Grande River at Below Falcon Dam TX 26.5572 -99.1667 BFOT2 Berry Bayou in Forest Oaks TX 29.6764 -95.2436 BGET2 Big Sandy Creek above Breckenridge TX 32.6483 -99.0042 BKBT2 Red River near Burkburnett TX 34.1100 -98.5314 BKCT2 Devils River at Bakers Crossing TX 29.9500 -101.1303 BKHT2 Brickhouse Gully at Costa Rica Street TX 29.8278 -95.4692 BLET2 Leon River near Belton TX 31.0700 -97.4411 BLIT2 Colorado River near Ballinger TX 31.7153 -100.0261 BMCT2 Marys Creek near Marys Creek TX 32.6950 -97.4469 BNPT2 Berry Bayou at Nevada Street TX 29.6558 -95.2289 BOLT2 San Bernard River near Boling TX 29.3133 -95.8939 BOQT2 Rio Grande at Boquillas-Rio Grande Vlg TX 29.1833 -102.9750 BOYT2 West Fork Trinity River near Boyd TX 33.0853 -97.5583 BQQT2 Rio Grande at Rio Grande TX 29.1850 -102.9622 BRAT2 Brady Creek at Brady Creek At Brady TX 31.1381 -99.3347 BRPT2 Big Sandy Creek near Bridgeport TX 33.2317 -97.6944 BRTT2 Colorado River at Bastrop TX 30.1044 -97.3192 BRVT2 Sabine River near Burkeville TX 31.0639 -93.5194 BSFT2 Buffalo Bayou at San Felipe Road TX 29.7500 -95.5056 BSNT2 Big Sandy Creek near Big Sandy TX 32.6039 -95.0914 BSST2 San Saba River near Brady TX 31.0039 -99.2686 BSVT2 Bear Creek near Settlers Village TX 29.8086 -95.7050 BTVT2 West Nueces River at Bracketville TX 29.4811 -100.2922 BUMT2 Nolan River near Blum TX 32.1506 -97.4025 BVWT2 Sister Grove Creek near Blue Ridge TX 33.2944 -96.4828 BWDT2 Pecan Bayou at Brownwood TX 31.7317 -98.9736 BWRT2 Sabine River near Bon Wier TX 30.7469 -93.6083 CAAT2 Nueces River at Calallen TX 27.8828 -97.6250 CART2 Elm Fork Trinity River near Carrollton TX 32.9658 -96.9442 CBAT2 Clear Creek at Bay Area Boulevard TX 29.4975 -95.1600 CBBT2 Rio Grande at Columbia Bridge TX 27.7064 -99.7500 CBPT2 Carpenters Bayou at U.S. Hwy 90 TX 29.7708 -95.1444 CBST2 Colorado River in Columbus TX 29.7061 -96.5367 CBVT2 Nueces River near Bluntzer TX 27.9375 -97.7756 CBWT2 Carpenters Bayou at Wallisville Road TX 29.7931 -95.1444 CCBT2 Cowart Creek in Baker Road TX 29.4983 -95.2167 CCGT2 Cypress Creek at Grant Road TX 29.9733 -95.5983 CCVT2 Coleto Creek at "Highway 59, Victoria" TX 28.7308 -97.1383 CCWT2 Chiger Creek in Windsong Lane TX 29.5144 -95.2217 CDCT2 Colorado River at Colorado City TX 32.3925 -100.8783 CDET2 Rio Grande at Candelaria TX 30.1750 -104.6861 CDNT2 Canadian River at Canadian TX 35.9350 -100.3703 CEBT2 East Buffalo Creek at Cleburne TX 32.3500 -97.3667 CFKT2 West Fork San Jacinto River near Conroe TX 30.2444 -95.4569 CHLT2 Prairie Dog Town Fork Red River near Childress TX 34.5692 -100.1936 CHVT2 South Concho River at Christoval TX 31.1869 -100.5017 CIBT2 Buffalo Bayou near Katy TX 28.8000 -95.8317 CLBT2 North Concho River near Carlsbad TX 31.5925 -100.6367 CLCT2 Clear Creek in Seabrook TX 29.5503 -95.0239 CLDT2 East Fork San Jacinto River in Cleveland TX 30.3364 -95.1039 CLYT2 Bear Creek near Addicks TX 29.8311 -95.6864 CMKT2 Devils River near Comstock TX 29.6764 -101.0000 CMNT2 Little River at Cameron TX 30.8350 -96.9464 CNCT2 Frio River at Concan TX 29.4883 -99.7044 CNLT2 East Fork Trinity River near Crandall TX 32.6386 -96.4850 CODT2 Sandy Creek near Cordele TX 29.1600 -96.5461 COMT2 Guadalupe River at Comfort TX 29.9653 -98.8972 COPT2 South Sulphur River near Cooper TX 33.3564 -95.5947 COTT2 Nueces River at Cotulla TX 28.4261 -99.2397 CPDT2 Palo Duro Creek at Canyon TX 34.9892 -101.9417 CPPT2 North Sulphur River near Cooper TX 33.4747 -95.5875 CPTT2 Carpenters Bayou at I-10 TX 29.7708 -95.1444 CPWT2 Cypress Creek at Cypresswood Drive TX 30.1764 -95.3333 CRFT2 Hog Creek near Crawford TX 31.5556 -97.3561 CRKT2 Trinity River near Crockett TX 31.3383 -95.6561 CSTT2 Rio Grande at Castolon TX 29.1378 -103.5244 CTNT2 North Bosque River near Clifton TX 31.7858 -97.5678 CUET2 Guadalupe River near Cuero TX 29.0903 -97.3294 CUST2 East Fork Angelina River near Cushing TX 31.8600 -94.8231 CUTT2 Pecan Bayou near Cross Cut TX 31.9733 -99.1292 CWBT2 West Buffalo Creek at Cleburne TX 32.3500 -97.4000 CYRT2 Little Cypress Creek at Cypress-Rosehill Road TX 30.0158 -95.6972 DALT2 Trinity River at Dallas TX 32.7747 -96.8217 DBYT2 Frio River near Derby TX 28.7364 -99.1444 DCJT2 Denton Creek near Justin TX 33.1189 -97.2903 DEET2 Deep Creek near Dunn TX 32.5736 -100.9075 DEHT2 Cole Creek at Deihl Road TX 29.8511 -95.4878 DEKT2 Red River near Dekalb TX 33.6839 -94.6942 DEYT2 East Yegua Creek near Dime Box TX 30.4072 -96.8172 DIBT2 Neches River near Diboll TX 31.1328 -94.8097 DLLT2 Leon River near Deleon TX 32.1736 -98.5328 DLRT2 Rio Grande at Del Rio TX 29.3308 -100.9289 DMYT2 Middle Yegua Creek near Dime Box TX 30.3392 -96.9044 DNNT2 Brazos River near Dennis TX 32.6156 -97.9256 DSBT2 Sabana River near Deleon TX 32.1139 -98.6053 DUPT2 Guadalupe River near Bloomington TX 28.6619 -96.9653 DWRT2 White Rock Creek at Greenville Ave TX 32.8892 -96.7564 DWYT2 Sabine River near Deweyville TX 30.3036 -93.7436 DYNT2 Rio Grande near Dryden 16S TX 29.8236 -102.1667 EAMT2 West Fork Trinity River at Eagle Mountain Lake TX 32.8775 -97.4747 EAST2 Navasota River near Easterly TX 31.1700 -96.2975 EBBT2 San Bernard River near East Bernard TX 29.5331 -96.0561 EDNT2 Lavaca River near Edna TX 28.9597 -96.6861 ELMT2 San Antonio River near Elmendorf TX 29.2219 -98.3556 ELTT2 Beaver Creek near Electra TX 33.9058 -98.9047 EPPT2 Rio Grande River at Eagle Pass TX 28.7139 -100.5069 EPRT2 Rio Grande at El Paso TX 31.8028 -106.5403 EVDT2 Neches River near Evadale TX 30.3556 -94.0931 FACT2 San Antonio River near Falls City TX 28.9514 -98.0639 FAFT2 Los Olmos Creek near Falfurrias TX 27.2642 -98.1356 FALT2 Rio Grane River at Falcon Dam TX 26.5597 -99.1667 FCTT2 Cibolo Creek near Falls City TX 29.0139 -97.9300 FLPT2 Big Island Slough at Fairmont Parkway TX 29.6139 -95.0847 FLWT2 West Fork Trinity River at Lake Worth TX 32.7892 -97.4161 FNDT2 Clear Creek at Fm 2351 TX 29.5422 -95.1969 FRBT2 Pedernales River at Fredericksburg TX 30.2203 -98.8694 FRLT2 Redgate Creek near Frelsberg TX 29.7989 -96.5319 FWHT2 Clear Fork Trinity River at Fort Worth TX 32.7322 -97.3586 FWOT2 West Fork Trinity River at Fort Worth TX 32.7608 -97.3322 GABT2 Garners Bayou at Beltway 8 TX 29.9342 -95.2339 GAPT2 Garners Bayou at Rankin Road TX 29.9778 -95.2792 GAST2 Leon River at Gatesville TX 31.4328 -97.7617 GBCT2 Guadalupe River below Comal TX 29.6978 -98.1064 GBHT2 Greens Bayou at U.S. Hwy 59 TX 29.9181 -95.3067 GBLT2 Greens Bayou at Ley Road TX 29.8369 -95.2331 GCBT2 Goose Creek in Baytown TX 29.8431 -95.0097 GCGT2 Greens Bayou at Cutten Road TX 29.9472 -95.4972 GDKT2 Duck Creek near Garland TX 32.8328 -96.5953 GDWT2 Sabine River near Gladewater TX 32.5269 -94.9600 GEOT2 San Gabriel River near Georgetown TX 30.6667 -97.6000 GETT2 South Fork San Gabriel River at Georgetown TX 30.6256 -97.6908 GIVT2 Pecos River near Girvin 3Nnw TX 31.1131 -102.4172 GJCT2 Greens Bayou at Normandy Road TX 29.7667 -95.1889 GLIT2 San Antonio River at Goliad TX 28.6492 -97.3847 GLLT2 Elm Fork Trinity River at Gainesville TX 33.6242 -97.1561 GLRT2 Brazos River near Glen Rose TX 32.2589 -97.7022 GNDT2 West Mustang Creek near Ganado TX 29.0714 -96.4669 GNLT2 Guadalupe River at Gonzales TX 29.4842 -97.4500 GNTT2 Clear Creek at Greentee Avenue TX 29.5572 -95.2528 GNVT2 Cowleech Fork Sabine River at Greenville TX 33.1328 -96.0767 GOOT2 Goose Creek at Baker Road TX 29.7706 -94.9994 GPCT2 Cottonwood Creek near Grand Prairie TX 32.7317 -96.9944 GPRT2 West Fork Trinity River at Grand Prairie TX 32.7625 -96.9944 GRIT2 Trinity River near Goodrich TX 30.5719 -94.9486 GROT2 Paluxy River at Glen Rose TX 32.2314 -97.7769 GRST2 Navasota River above Groesbeck TX 31.5742 -96.5206 GSST2 Brays Bayou at Gessner Drive TX 29.6725 -95.5281 GVPT2 Pecan Creek at Gainesville TX 33.6242 -97.1386 HABT2 Halls Bayou at Jensen Drive TX 29.8617 -95.3347 HAGT2 Arroyo Colorado at Harlingen TX 26.1733 -97.6836 HAKT2 Sabine River near Hawkins TX 32.5597 -95.2064 HBHT2 Highland Bayou near Hitchcock TX 29.3600 -95.0394 HBMT2 Brays Bayou at South Main Street TX 29.6969 -95.4119 HCCT2 Clear Creek at Friendswood TX 29.5172 -95.1783 HCDT2 Cedar Bayou near Crosby TX 29.9725 -94.9856 HCHT2 Cypress Creek near House And Haul Road TX 29.9589 -95.7175 HCST2 Sims Bayou at Hiram Clarke Street TX 29.6186 -95.4458 HCYT2 Big Fossil Creek at Haltom City TX 32.8072 -97.2483 HECT2 Rio Grande at Heath Canyon TX 29.4486 -102.8222 HEGT2 Spring Creek near Hegar Road TX 30.0986 -95.7447 HFFT2 Luce Bayou near Huffman TX 30.1094 -95.0597 HGBT2 Greens Bayou at Knobcrest Street TX 29.9567 -95.4178 HGTT2 White Oak Bayou at Heights Boulevard TX 29.7750 -95.3969 HIBT2 Brazos River near Highbank TX 31.1339 -96.8247 HICT2 North Bosque River at Hico TX 31.9764 -98.0325 HMCT2 Brays Bayou at Rice Avenue TX 29.6783 -95.4686 HMLT2 Leon River near Hamilton TX 31.7886 -98.1211 HMMT2 West Fork San Jacinto River in Humble TX 30.0264 -95.2583 HNTT2 Guadalupe River at Hunt TX 30.0697 -99.3214 HOCT2 Cypress Creek near Hockley TX 29.9208 -95.8400 HPDT2 Brazos River near Hempstead TX 30.1289 -96.1875 HPOT2 Buffalo Bayou in Turning Basin TX 29.7492 -95.2908 HSIT2 Sims Bayou at Telephone Road TX 29.6742 -95.2892 HSJT2 San Jacinto River near Lake Houston TX 29.9161 -95.1411 HTGT2 Hunting Bayou at Loop 610 East TX 29.7931 -95.2678 HTST2 Navidad River at Hallettsville TX 29.4383 -96.9392 HWLT2 Clear Fork Brazos River near Hawley TX 32.5981 -99.8147 IRAT2 Colorado River near Ira TX 32.5383 -101.0533 JAKT2 West Fork Trinity River near Jacksboro TX 33.2917 -98.0803 JEFT2 Black Cypress Bayou at Jefferson TX 32.7778 -94.3572 JFET2 Big Cypress Bayou near Jefferson TX 32.7494 -94.4986 JFFT2 Little Cypress Bayou near Jefferson TX 32.7128 -94.3458 JKST2 Mud Creek near Jacksonville TX 31.9764 -95.1606 JNCT2 Llano River near Junction TX 30.5042 -99.7342 JNXT2 Devils River near Juno TX 30.0792 -101.1097 JOCT2 Pedernales River at Johnson City TX 30.2917 -98.3992 JTBT2 Double Mountain Fork Brazos River at Justiceburg TX 33.0383 -101.1972 JVLT2 White Oak Bayou at Jersey Village TX 29.8875 -95.5556 KAUT2 Kings Creek near Kaufman TX 32.5133 -96.3289 KDYT2 Escondido Creek undef Kenedy - Escondido Ck TX 28.8197 -97.8589 KEET2 Keegans Bayou at Keegan Road TX 29.6653 -95.5950 KEMT2 Lampasas River near Kempner TX 31.0792 -98.0164 KHOT2 Cypress Creek near Hockley TX 29.9500 -95.8081 KLGT2 Rabbit Creek at Kilgore TX 32.3881 -94.9031 KNBT2 Dove Creek near Knickerbocker TX 31.2739 -100.6306 KNLT2 Sandy Creek near Kingsland TX 30.5575 -98.4719 KOUT2 Village Creek near Kountze TX 30.3978 -94.2633 KRRT2 Guadalupe River at Kerrville TX 30.0531 -99.1631 KTNT2 Sweetwater Creek near Kelton TX 35.4731 -100.1206 KWHT2 Hondo Creek at King Waterhole/Hondo Crk TX 29.3761 -99.1167 KYKT2 Cypress Creek at Kuykendahl Road TX 30.0289 -95.4811 LACT2 Medina River at Lacoste TX 29.3239 -98.8128 LBYT2 Trinity River in Liberty TX 30.0575 -94.8181 LCBT2 Wolf Creek at Lipscomb TX 36.2386 -100.2753 LCTT2 West Fork Of The San Jacinto River near Lake Conroe TX 30.3583 -95.5608 LDOT2 Rio Grande at Laredo TX 27.5014 -99.5036 LGCT2 Clear Creek in League City TX 29.5114 -95.1211 LGRT2 Colorado River above Lagrange TX 29.9122 -96.9036 LIVT2 Long King Creek at Livingston TX 30.7161 -94.9586 LKLT2 Little Cypress Creek at Kluge Road TX 29.9786 -95.6292 LKST2 Leon Creek at Leon Ck Ih-35 TX 29.3297 -98.5839 LKWT2 Hunting Bayou at Lockwood Drive TX 29.8094 -95.3317 LLAT2 Llano River at Llano TX 30.7511 -98.6694 LLGT2 San Marcos River below Luling TX 29.6661 -97.6506 LLYT2 Langham Creek near Addicks TX 29.8669 -95.6464 LMBT2 Little Mound Creek near Mathis Road TX 30.0228 -95.8917 LMCT2 East Mustang Creek near Louise TX 29.0706 -96.4169 LNYT2 Rio Grande at Foster Ranch TX 29.7806 -101.7583 LOBT2 Rio Grande River at Lower Brownsville TX 25.8764 -97.4556 LOLT2 Trinity River near Long Lake TX 31.6483 -95.7892 LONT2 Sabine River at Longview TX 32.4167 -94.7097 LPOT2 Little Cedar Bayou at La Porte TX 29.6472 -95.0236 LPTT2 Neches River at Lake Palestine TX 32.0533 -95.4367 LRIT2 Little River near Little River TX 30.9664 -97.3458 LSNT2 Navidad River near Strane Park TX 29.0656 -96.6744 LTRT2 Pecos River near Langtry TX 29.8028 -101.4458 LUFT2 Angelina River near Lufkin TX 31.4572 -94.7261 LULT2 Plum Creek near Luling TX 29.6994 -97.6033 LVDT2 Trinity River near Lake Livingston TX 30.6333 -95.0100 LVJT2 Little Vince Bayou at Jackson Avenue TX 29.7083 -95.2000 LWCT2 Willow Creek near Tomball TX 30.1053 -95.5464 LWDT2 Brays Bayou at Lawndale Avenue TX 29.7236 -95.3042 LWOT2 Little White Oak Bayou at Tidwell TX 29.8333 -95.3889 LYNT2 Davidson Creek near Lyons TX 30.4194 -96.5400 MADT2 Rio Grande River at Anzalduas Dam TX 26.1306 -98.3361 MBCT2 Beaver Creek near Mason TX 30.6433 -99.0956 MBFT2 Trinity River near Moss Bluff TX 29.9639 -94.7764 MCDT2 Rio Grande River at Mercedes TX 26.0667 -97.9000 MCFT2 Marys Creek in Melodywood Drive TX 29.5381 -95.1983 MCGT2 Middle Bosque River near Mcgregor TX 31.5092 -97.3656 MCKT2 East Fork Trinity River at Mckinney TX 33.2036 -96.5956 MDST2 Bedias Creek near Madisonville TX 30.8842 -95.7775 MGBT2 Middle Bayou near Genoa Red Bluff Road TX 29.6500 -95.1292 MHPT2 Greens Bayou at Mount Houston Parkway TX 29.8875 -95.2331 MLAT2 Sabine River near Mineola TX 32.6136 -95.4856 MLIT2 Pecan Bayou near Mullin TX 31.5172 -98.7403 MLKT2 Sims Bayou at Martin Luther King Boulevard TX 29.6450 -95.3369 MLRT2 Llano River near Mason TX 30.6606 -99.1089 MNFT2 Walnut Creek near Mansfield TX 32.5808 -97.1017 MNRT2 San Saba River at Menard TX 30.9189 -99.7853 MRAT2 Navidad River near Morales TX 29.1353 -96.7442 MRCT2 Colorado River at Matagorda TX 28.6992 -95.9750 MSBT2 Sims Bayou near Pearland TX 29.6339 -95.3911 MSKT2 Mason Creek at Prince Creek Road TX 29.7750 -95.7314 MTBT2 Nueces River at Mathis TX 28.0381 -97.8600 MTPT2 Tres Palacios River near Midfield TX 28.9278 -96.1708 MYKT2 Clear Creek 10 n Mykawa Street TX 29.5967 -95.2972 NAPT2 Sulphur River near Naples TX 33.2500 -94.6167 NBCT2 Comal River at Comal TX 29.7058 -98.1222 NBRT2 Guadalupe River above Comal TX 29.7147 -98.1097 NCET2 East Fork San Jacinto near New Caney TX 30.1453 -95.1242 NCST2 Neches River near Neches TX 31.8922 -95.4306 NGCT2 Garcitas Creek near Inez TX 28.8911 -96.8189 NGET2 Navasota River near Normangee TX 30.9736 -96.2414 NGTT2 Clear Fork Brazos River at Nugent TX 32.6900 -99.6692 OOST2 Oso Creek near Corpus Christi TX 27.7111 -97.5017 ORCT2 Little Cypress Bayou at Ore City TX 32.6725 -94.7508 ORNT2 Sabine River near Orange TX 30.0972 -93.7211 PBGT2 Big Cypress Bayou near Pittsburg TX 33.0208 -94.8819 PDAT2 Pecos River at Pandale Crossing TX 30.1250 -101.5722 PICT2 Cowhouse Creek near Pidcoke TX 31.2847 -97.8847 PIOT2 Rio Grande above Presidio TX 29.6042 -104.4514 PLOT2 Brazos River near Palo Pinto TX 32.8625 -98.3022 PPTT2 Buffalo Bayou near Piney Point Village TX 29.7467 -95.5233 PRDT2 Rio Grande below Presidio TX 29.5192 -104.2864 PRKT2 Concho River at Paint Rock TX 31.5158 -99.9192 PRST2 Rio Grande at Presidio International Bridge TX 29.5578 -104.3936 PTET2 West Fork San Jacinto River near Porter TX 30.0858 -95.2997 QLAT2 South Fork Sabine River near Quinlan TX 32.8978 -96.2531 QTMT2 Lake Fork Creek near Quitman TX 32.7631 -95.4628 RCCT2 Copano Creek near Refugio TX 28.3033 -97.1122 RCET2 Chambers Creek near Rice TX 32.1983 -96.5200 REFT2 Mission River at Refugio TX 28.2917 -97.2789 RELT2 Colorado River at Robert Lee TX 31.8853 -100.4803 RGDT2 Rio Grande River at Rio Grande City TX 26.3667 -98.8028 RLRT2 Little River near Rockdale TX 30.7606 -97.0136 RMOT2 Brazos River in Richmond TX 29.5822 -95.7575 RMYT2 Trinity River near Romayor TX 30.4250 -94.8506 ROKT2 Neches River at Rockland TX 31.0250 -94.3994 ROST2 Brazos River near Rosharon TX 29.3494 -95.5822 ROYT2 Clear Fork Brazos River near Roby TX 32.7875 -100.3883 RRKT2 Keegans Bayou at Roark Road TX 29.6564 -95.5619 RSRT2 Trinity River near Rosser TX 32.4264 -96.4628 RUST2 Rush Creek near Arlington TX 32.7667 -97.1667 RVRT2 Trinity River near Riverside TX 30.8592 -95.3986 RYET2 Menard Creek near Rye TX 30.4817 -94.7792 SAAT2 Medina River near San Antonio TX 29.2639 -98.4906 SABT2 Sabinal at Sabinal TX 29.3142 -99.4806 SACT2 Salado Creek at Salado Creek At Loop 13 TX 29.3569 -98.4125 SBMT2 Navidad River near Sublime TX 29.4667 -96.8125 SBNT2 Rio Grande River near San Benito TX 26.0306 -97.7278 SCCT2 Concho River at San Angelo TX 31.4544 -100.4103 SCDT2 Coleto Creek at Arnold Road Crossing TX 28.8614 -97.2261 SCRT2 Seco Creek near D'Hanis TX 29.3706 -99.2875 SDAT2 Caney Creek near Splendora TX 30.2594 -95.3022 SEGT2 Guadalupe River at Seguin TX 29.5519 -97.9697 SELT2 Cibolo Creek at Selma TX 29.5939 -98.3108 SFIT2 Independence Creek near Sheffield TX 30.4519 -101.7328 SGET2 Clear Creek near Sanger TX 33.3361 -97.1792 SGFT2 Geronimo Creek near Seguin TX 29.5742 -97.9283 SGOT2 Pecan Creek near San Angelo TX 31.3089 -100.4456 SHAT2 North Fork Of The Red River at Shamrock TX 35.2642 -100.2414 SHCT2 Rowlett Creek near Sachse TX 32.9597 -96.6142 SHLT2 San Jacinto River near Sheldon TX 29.8761 -95.0936 SILT2 Colorado River above Silver TX 32.0536 -100.7617 SIOT2 Olmos Creek at Dresden Drive Near San Antonio TX 29.4989 -98.5100 SKMT2 Aransas River near Skidmore TX 28.2822 -97.6206 SMAT2 South Mayde Creek near Addicks TX 29.8008 -95.7669 SMIT2 Colorado River near Smithville TX 30.0125 -97.1617 SNBT2 Colorado River near San Saba TX 31.2178 -98.5642 SNCT2 North Concho River at San Angelo TX 31.4658 -100.4475 SOLT2 Pine Island Bayou near Sour Lake TX 30.1058 -94.3344 SOMT2 Yegua Creek in Lake Somerville TX 30.3222 -96.5256 SOUT2 Brazos River near South Bend TX 33.0242 -98.6436 SPAT2 Navidad River near Speaks TX 29.3217 -96.7089 SPCT2 Pecos River near Sheffield TX 30.6594 -101.7697 SPDT2 Peach Creek near Splendora TX 30.2325 -95.1681 SPNT2 Spring Creek near Spring TX 30.1103 -95.4361 SRCT2 North Concho River at Sterling City TX 31.8300 -100.9933 SRGT2 Guadalupe River near Spring Branch TX 29.8603 -98.3833 SSBT2 San Saba River at San Saba TX 31.2131 -98.7192 STFT2 California Creek near Stamford TX 32.9308 -99.6422 STLT2 Guadalupe River at Sattler TX 29.8589 -98.1797 STUT2 Cypress Creek at Stuebner-Airline Road TX 30.0064 -95.5117 STYT2 Colorado River near Stacy TX 31.4936 -99.5736 SWYT2 San Bernard River near Sweeny TX 29.0600 -95.6714 SYMT2 Brazos River at Seymour TX 33.5808 -99.2672 TBFT2 Neches River near Town Bluff TX 30.7908 -94.1508 TDDT2 Trinity River at Trinidad TX 32.1475 -96.1022 TELT2 Rio Grande at Johnson Ranch TX 29.0347 -103.3903 TGAT2 Rio Grande at Lajitas TX 29.2611 -103.7806 THET2 Nueces River near Three Rivers TX 28.4272 -98.1778 TIDT2 Frio River at Tilden TX 28.4672 -98.5472 TILT2 Nueces River near Tilden TX 28.3086 -98.5569 TKLT2 Spring Creek above Tankersley TX 31.3300 -100.6400 TKST2 Middle Concho River above Tankersley TX 31.4272 -100.7108 TLCT2 Sulphur River below Talco TX 33.3906 -95.0622 TMBT2 Spring Creek near Tomball TX 30.1197 -95.6458 TNGT2 Terlingua Creek near Terlingua TX 29.2028 -103.6194 TNLT2 San Miguel Creek near Tilden TX 28.5872 -98.5456 UDET2 Frio River below Dry Frio TX 29.2456 -99.6742 UMBT2 Tierra Blanca Creek above Umbarger TX 34.8503 -102.1756 UVAT2 Nueces River at Laguna TX 29.4283 -99.9969 UVLT2 Nueces River below Uvalde TX 29.1236 -99.8944 UWCT2 Willow Creek near Tomball TX 30.0625 -95.6208 VCBT2 Vince Bayou at Ellaine Street TX 29.6944 -95.2125 VCVT2 Vogle Creek at Victory Drive TX 29.8681 -95.4700 VERT2 Pease River near Vernon TX 34.1803 -99.3233 VGBT2 Vogle Creek at Gulfbank Road TX 29.5300 -95.2800 VICT2 Guadalupe River at Victoria TX 28.7928 -97.0128 VMAT2 North Bosque River at Valley Mills TX 31.6694 -97.4692 WABT2 White Oak Bayou at Alabonson Road TX 29.8706 -95.4803 WAYT2 Prairie Dog Town Fork Red River near Wayside TX 34.8375 -101.4136 WBAT2 Brazos River at Waco TX 31.5358 -97.0731 WBFT2 Neches River near Weiss Bluff TX 30.2456 -94.1117 WCBT2 Brazos River near West Columbia TX 29.1108 -95.6056 WCHT2 Colorado River at Winchell TX 31.4678 -99.1619 WEAT2 Clear Fork Trinity River near Weatherford TX 32.7403 -97.6517 WFDT2 Cypress Creek near Westfield TX 30.0356 -95.4286 WHAT2 Colorado River in Wharton TX 29.3089 -96.1036 WHOT2 Sandies Creek near Westhoff TX 29.2150 -97.4492 WICT2 Wichita River at Wichita Falls TX 33.9094 -98.5333 WLGT2 Salt Fork Of The Red River near Wellington TX 34.9575 -100.2206 WMBT2 Blanco River at Wimberley TX 29.9942 -98.0886 WOBT2 Little White Oak Bayou at Trimble Street TX 29.8014 -95.3708 WOCT2 White Oak Creek near Talco TX 33.3222 -95.0925 WPOT2 White Oak Bayou at Pinemont TX 29.8322 -95.4536 WSFT2 Willow Spring Bayou near Fairmont Parkway TX 29.6506 -95.1100 WSVT2 Trinity River at Wallisville TX 29.8361 -94.7492 WTTT2 Atascosa River at Whitsett TX 28.6219 -98.2811 AFPU1 American Fork River near American Fork UT 40.4478 -111.6814 BCNU1 Bear River at Corinne UT 41.5764 -112.1000 BCTU1 Big Cottonwood Creek near Salt Lake City UT 40.6186 -111.7811 BECU1 Bear River at Collinston UT 41.8342 -112.0544 BERU1 Bear River near Utah Wyoming State Line UT 40.9653 -110.8528 BFFU1 San Juan River near Bluff UT 37.1469 -109.9922 BIGU1 Big Cottonwood Creek near Cottonwood Lane UT 40.6564 -111.8239 BNRU1 Blacks Fork River near Robertson UT 40.9592 -110.5794 CASU1 Spanish Fork River at Castilla UT 40.0497 -111.5472 CCSU1 City Creek near Salt Lake City UT 40.7925 -111.8764 CIVU1 Chalk Creek at Coalville UT 40.9172 -111.6844 CLLU1 Weber River near Coalville UT 40.8953 -111.4011 COAU1 Coal Creek near Cedar City UT 37.6722 -113.0339 CRAU1 Lost Creek above Lost Creek Rsvr UT 41.1764 -111.4056 ECCU1 East Canyon Creek above Morgan UT 40.9225 -111.6064 ECPU1 East Canyon Creek near Park City UT 40.7239 -111.5189 ECWU1 Weber above Echo UT 40.9678 -111.4369 EMIU1 Emigration Creek near Salt Lake City UT 40.7500 -111.8125 EVAW4 Bear River at Evanston UT 41.2703 -110.9631 GATU1 Weber River near Gateway UT 41.1369 -111.8317 GRVU1 Green River at Green River UT 38.9861 -110.1506 GRZU1 Green River near Greendale UT 40.9083 -109.4222 GSLU1 Great Salt Lake Pool at Great Salt Lake UT 40.7314 -112.2128 HATU1 Sevier River near Hatch UT 37.6511 -112.4294 HRMU1 Blacksmith Fork River near Hyrum UT 41.6236 -111.7381 HURU1 Virgin River near Hurricane UT 37.1722 -113.3853 JESU1 Green River near Jensen UT 40.4094 -109.2347 JORU1 Jordan River at 5th North UT 40.5875 -111.9128 JRSU1 Jordan River at 17th South In Salt Lake City UT 40.7336 -111.9225 LCJU1 Little Cottonwood Creek at Salt Lake City UT 40.6639 -111.9011 LCTU1 Little Cottonwood Creek near Salt Lake City UT 40.5778 -111.7972 LCWU1 Little Cottonwood Creek at Crestwood Park UT 40.6144 -111.8431 LGNU1 Logan River near Logan UT 41.7433 -111.7819 MCLU1 Mcleod Creek above Park City UT 40.6875 -111.9011 MILU1 Mill Creek near Salt Lake City UT 40.3556 -111.9200 MYSU1 Sevier River at Marysvale UT 38.3281 -112.1869 NFVU1 Nf Virgin River at Springdale UT 37.2097 -112.9778 OAWU1 Weber River near Oakley UT 40.7372 -111.2472 OGHU1 South Fork Ogden River near Huntsville UT 41.2686 -111.6733 OPDU1 Ogden River above Ogden River UT 41.2544 -111.8550 PPPU1 Provo River near Provo UT 40.2378 -111.6986 PRLU1 Parleys Creek near Salt Lake City UT 40.7094 -111.7967 PRZU1 Little Bear above Paradise UT 41.5756 -111.8950 RBRU1 Red Butte Creek near 16th East In Salt Lake City UT 40.7800 -111.8042 SCGU1 Santa Clara River at Gunlock UT 37.2819 -113.7667 SCJU1 Silver Creek near Silver Creek Junction UT 40.7353 -111.4753 SCSU1 Jordan River Surplus Canal at Jordan Surplus Canal UT 40.7333 -111.9333 SEKU1 Sevier River near Kingston UT 38.2061 -112.2069 SGDU1 Sevier River at Sigurd UT 38.8733 -111.9533 SRKU1 East Fork Of The Sevier River near Kingston UT 38.1969 -112.1503 SRSU1 Santa Clara River at St. George UT 37.0753 -113.5922 SSWU1 Jordan River at 90th South UT 40.5875 -111.9128 TADU1 Duchesne River near Tabiona UT 40.3003 -110.6017 TEST Weber River near Oakley UT 40.7372 -111.2472 URRU1 Uinta River at Randlett UT 40.2336 -109.8031 VIRU1 Virgin River at Virgin UT 37.2042 -113.1800 VRBU1 Virgin River at Bloomington UT 37.0706 -113.5819 WCGU1 Willow Creek near Grantsville UT 40.4964 -112.5736 WESU1 West Canyon Creek above Cedar Fort UT 40.4053 -112.0997 WOOU1 Provo River near Woodland UT 40.5578 -111.1811 WOPU1 Price River at Woodside UT 39.2639 -110.3458 WWPU1 Weber River at Plain City UT 41.1600 -112.0500 YLLU1 Yellowstone River near Altona UT 40.5119 -110.3408 ALTV2 Roanoke River at Altavista VA 37.1044 -79.2956 BECV2 James River at Bent Creek VA 37.5361 -78.8297 BNNV2 James River at Buchanan VA 37.5306 -79.6792 BREV2 James River near Bremo Bluff VA 37.7083 -78.2886 BROV2 Roanoke River at Brookneal VA 37.0394 -78.9458 BVSV2 Maury River above Buena Vista VA 37.7625 -79.3917 CARV2 James River at Cartersville VA 37.6708 -78.0861 CLPV2 Rapidan River near Culpeper VA 38.3503 -77.9753 CLVV2 Clinch River at Cleveland VA 36.9447 -82.1550 COOV2 North Fork Shenandoah at Cootes Store VA 38.6369 -78.8531 CVGV2 Jackson River at Covington City Park VA 37.7886 -80.0008 DVLV2 Dan River near Danville VA 36.5625 -79.3700 EPOV2 Meherrin River at Emporia VA 36.6900 -77.5408 FDBV2 Rappahannock River above Fredericksburg VA 38.3083 -77.5294 FEDV2 Rappahannock River at Fredericksburg VA 38.2897 -77.4497 FKNV2 Blackwater River above Franklin VA 36.7625 -76.8986 FRMV2 Appomattox River above Farmville VA 37.3069 -78.3889 FROV2 South Fork Shenandoah River at Front Royal VA 38.9139 -78.2111 GATV2 North Fork Holston River near Gate City VA 36.6086 -82.5681 GAXV2 New River near Galax VA 36.6472 -80.9792 GLLV2 New River at Glen Lyn VA 37.3728 -80.8608 HAIV2 Russell Fork River at Haysi VA 37.2069 -82.2958 HRKV2 James River at Holcomb Rock VA 37.5011 -79.2628 JNSV2 Powell River near Jonesville Va VA 36.6619 -83.0950 LAWV2 Meherrin River at Lawrenceville VA 36.7167 -77.8319 LEEV2 Goose Creek near Leesburg VA 39.0194 -77.5778 LIRV2 James River at Lick Run VA 37.7736 -79.7844 LYNV2 James River at Lynchburg VA 37.4186 -79.1397 LYWV2 South Fork Shenandoah River near Lynnwood VA 38.3225 -78.7550 MTCV2 Appomattox River at Matoaca VA 37.2250 -77.4756 MTXV2 Appomattox River at Mattoax VA 37.4214 -77.8592 PCEV2 Dan River near Paces VA 36.6422 -79.0897 PYAV2 Rivanna River at Palmyra VA 37.8578 -78.2661 RAWV2 Nottoway River at Rawlings VA 36.9833 -77.8000 RDFV2 New River at Radford VA 37.1417 -80.5694 RENV2 Rappahannock River at Remington VA 38.5306 -77.8139 RICV2 James River at Richmond Locks VA 37.5250 -77.4211 RLRV2 Clinch River near Richlands VA 37.0861 -81.7811 RMDV2 James River at Richmond Westham VA 37.5631 -77.5472 RNDV2 Roanoke River at Randolph VA 36.9150 -78.7411 RONV2 Roanoke River at Roanoke VA 37.2583 -79.9389 SALV2 N.Fk. Holston River near Saltville VA 36.8967 -81.7464 SBNV2 Dan River at South Boston VA 36.6933 -78.9006 SEBV2 Nottoway River at Sebrell VA 36.7703 -77.1664 SFSV2 South Fk Shenandoah River near Luray VA 38.6461 -78.5350 SFYV2 Clinch River near Speers Ferry Va VA 36.6486 -82.7506 SMFV2 Middle Fork Holston River at Seven Mile Ford VA 36.8072 -81.6222 STGV2 North Fork Shenandoah River near Strasburg VA 38.9767 -78.3364 STYV2 Nottoway River near Stony Creek VA 36.9000 -77.4000 SVEV2 James River at Scottsville VA 37.7972 -78.4917 WAYV2 South River near Waynesboro VA 38.0575 -78.9083 WOLV2 Wolf Creek near Narrows VA 37.3056 -80.8500 ARLV1 Batten Kill at Arlington VT 43.0772 -73.1572 BNTV1 Walloomsac River at Bennington VT 42.9128 -73.2569 CENV1 Otter Creek at Center Rutland VT 43.6036 -73.0136 COVV1 Barton River at Coventry VT 44.8714 -72.2006 EBKV1 Missisquoi River at East Berkshire VT 44.9600 -72.6969 ESSV1 Winooski River at Essex Junction VT 44.4789 -73.1392 JONV1 Lamoille River at Johnson VT 44.6228 -72.6767 JVLV1 Lamoille River at Jeffersonville VT 44.6442 -72.8361 MDBV1 Otter Creek at Middlebury VT 44.0131 -73.1683 MONV1 Winooski River at Montpelier VT 44.2567 -72.5939 NTYV1 Missisquoi River near North Troy VT 44.9728 -72.3858 PASV1 Passumpsic River at Passumpsic VT 44.3656 -72.0397 RKGV1 Williams River at Rockingham VT 43.1917 -72.4856 SAXV1 Saxtons River at Saxtons River VT 43.1375 -72.4886 SWAV1 Missisquoi River at Swanton VT 44.9167 -73.1289 TOWV1 West River at Townshend Dam VT 43.0511 -72.7006 WATV1 Winooski River at Waterbury VT 44.3283 -72.7461 WEHV1 White River at West Hartford VT 43.7142 -72.4186 WELV1 Connecticut River at Wells River VT 44.1536 -72.0428 ALFW1 Pend Oreille River below Albeni Falls WA 48.1789 -116.9997 ANAW1 Snake River near Anatone WA 46.0972 -116.9767 ARDW1 Entiat River near Ardenvoir WA 47.8186 -120.4219 ARGW1 North Fork Stillaguamish River near Arlington WA 48.2617 -122.0464 ARLW1 Stillaguamish River at Arlington WA 48.2036 -122.1281 AUBW1 Green River near Auburn WA 47.3125 -122.2028 BCDW1 Skookumchuck River near Bucoda WA 46.7722 -122.9231 BOGW1 Bogachiel River near La Push WA 47.9031 -124.5447 CASW1 Cowlitz River at Castle Rock WA 46.2744 -122.9125 CENW1 Chehalis River at Centralia WA 46.7117 -122.9775 CGMW1 Chehalis River near Grand Mound WA 46.7761 -123.0344 CLFW1 Naches River near Cliffdell WA 46.9006 -121.0181 CONW1 Skagit River near Concrete WA 48.5244 -121.7697 CRNW1 Snoqualmie River near Carnation WA 47.6661 -121.9242 CRPW1 Chehalis River at Porter WA 46.9394 -123.3131 CTAW1 Skookumchuck River near Centralia WA 46.7303 -122.9539 DOTW1 Chehalis River near Doty WA 46.6175 -123.2764 DRSW1 Dungeness River near Sequim WA 48.0144 -123.1314 DSRW1 Deschutes River near Rainier WA 46.8522 -122.6675 ELWW1 Elwha River at Mcdonald Bridge WA 48.0550 -123.5819 FFXW1 Carbon River near Fairfax WA 47.0281 -122.0314 FRYW1 Kettle River near Ferry WA 48.9814 -118.7653 GFLW1 South Fork Stillaguamish River near Granite Falls WA 48.1033 -121.9519 GLBW1 Skykomish River near Gold Bar WA 47.8375 -121.6656 GRRW1 Grays River near Rosburg WA 46.3544 -123.5817 HAGW1 Hangman/Latah Creek at Spokane WA 47.6528 -117.4497 HLKW1 Yakima River at Horlick WA 47.1242 -120.7392 ISSW1 Issaquah Creek near Issaquah WA 47.5525 -122.0467 KELW1 Cowlitz River at Kelso WA 46.1425 -122.9161 KIOW1 Yakima River at Kiona WA 46.2536 -119.4769 LNDW1 Cedar River near Landsburg WA 47.3939 -121.9533 LOPW1 Columbia River at Longview WA 46.1056 -122.9539 LRWW1 Lewis River at Woodland WA 45.9058 -122.7381 LSDW1 Little Spokane River at Dartford WA 47.7847 -117.4033 MAYW1 Cowlitz River below Mayfield Dam WA 46.5106 -122.6150 MKNW1 Nisqually River at Mckenna WA 46.9336 -122.5597 MMRW1 White River near Mud Mtn. Dam Outflow WA 47.1408 -121.9300 MNSW1 Wynoochee River near Montesano WA 47.0117 -123.6542 MROW1 Snohomish River near Monroe WA 47.8311 -122.0472 MVEW1 Skagit River near Mt. Vernon WA 48.4450 -122.3342 NACW1 Naches River near Naches WA 46.7467 -120.7681 NASW1 Naselle River near Naselle WA 46.3742 -123.7422 NEWW1 Newaukum River near Chehalis WA 46.6203 -122.9439 NISW1 Nisqually River near National WA 46.7528 -122.0825 NITW1 Similkameen River near Nighthawk WA 48.9847 -119.6172 NKSW1 Nooksack River at Ferndale WA 48.8450 -122.5881 NRKW1 Nooksack River at North Cedarville WA 48.8419 -122.2931 NSSW1 South Fork Nooksack River at Saxon Bridge WA 48.6778 -122.1653 ORTW1 Puyallup River near Orting WA 47.0394 -122.2067 PARW1 Yakima River near Parker WA 46.4972 -120.4417 PATW1 Methow River near Pateros WA 48.0775 -119.9839 PESW1 Wenatchee River at Peshastin WA 47.5833 -120.6183 PILW1 Pilchuck River near Snohomish WA 47.9350 -122.1200 PITW1 Klickitat River near Pitt WA 45.7567 -121.2089 PRDW1 Columbia River below Priest Rapids Dam WA 46.6289 -119.8636 PULW1 South Fork Palouse River at Pullman WA 46.7325 -117.1800 PUYW1 Puyallup River at Puyallup WA 47.2086 -122.3258 RAWW1 Cowlitz River at Randle WA 46.5325 -121.9556 RNTW1 Cedar River at Renton WA 47.4828 -122.2022 SATW1 Satsop River near Satsop WA 47.0008 -123.4936 SNAW1 Snohomish River at Snohomish WA 47.9131 -122.1089 SPOW1 Spokane River at Spokane WA 47.6594 -117.4481 SQUW1 Snoqualmie River near The Falls WA 47.5453 -121.8411 SRPW1 Skokomish River at Potlatch WA 47.3100 -123.1758 STHW1 Stehekin River at Stehekin WA 48.3297 -120.6906 TCHW1 Walla Walla River near Touchet WA 46.0278 -118.7286 TOLW1 Tolt River near Carnation WA 47.6958 -121.8228 TONW1 Okanogan River near Tonasket WA 48.6325 -119.4606 TOTW1 Toutle River at Tower Rd Bridge WA 46.3347 -122.8406 UMTW1 Yakima River at Umtanum WA 46.8628 -120.3794 VAPW1 Columbia R at Vancouver WA 45.6314 -122.6964 VTEC5 Naches River near Cliffdell WA 46.9006 -121.0181 WILW1 Willapa River near Willapa WA 46.6511 -123.6517 WKMW1 South Fork Nooksack River near Wickersham WA 48.6644 -122.1322 AFTW3 Rock River at Afton WI 42.6092 -89.0708 ALBW3 Sugar River at Albany WI 42.7058 -89.4378 ALMW3 Mississippi River near Alma Dam 4 WI 44.3264 -91.9192 AMBW3 Pike River near Amberg WI 45.5000 -88.0000 APLW3 Fox River at Appleton WI 44.2481 -88.4231 ATHW3 Peshtigo River near Athelstane WI 45.3878 -88.3039 BABW3 Baraboo River near Baraboo WI 43.4817 -89.6361 BBCW3 Yellow River at Babcock WI 44.3022 -90.1225 BBOW3 Baraboo River at West Baraboo WI 43.4708 -89.7594 BCHW3 East Branch Pecatonica River near Blanchardville WI 42.7853 -89.8614 BEAW3 Beaverdam River at Beaver Dam WI 43.4442 -88.8453 BERW3 Fox River near Berlin WI 43.9539 -88.9522 BIRW3 Wisconsin River below Biron Reservoir WI 44.4336 -89.7819 BRFW3 Black River at Black River Falls WI 44.2936 -90.8464 BRGW3 Fox River at Burlington WI 42.6797 -88.2711 BRKW3 Pine River near Florence WI 45.8378 -88.2253 BROW3 Sugar River at Brodhead WI 42.6119 -89.3978 BUNW3 Galena River at Buncombe WI 42.5136 -90.3778 CAFW3 Peshtigo River near Caldron Falls Dam WI 45.3572 -88.2314 CDRW3 Cedar Creek at Cedarburg WI 43.3231 -87.9783 CEDW3 Milwaukee River near Cedarburg WI 43.2797 -87.9425 CLIW3 Turtle Creek near Clinton WI 42.5972 -88.8292 COMW3 Brule River near Commonwealth WI 45.9475 -88.2153 CRIW3 Peshtigo River near High Falls Dam WI 45.2783 -88.1978 DARW3 Pecatonica River at Darlington WI 42.6778 -90.1192 DDGW3 Trempealeau River at Dodge WI 44.1317 -91.5528 DUBW3 Wisconsin River below Dubay Reservoir WI 44.6650 -89.6508 DURW3 Chippewa River at Durand WI 44.6311 -91.9714 ECLW3 Chippewa River at Eau Claire WI 44.8097 -91.5019 EMBW3 Embarrass River near Embarrass WI 44.7247 -88.7361 FATW3 Rock River at Fort Atkinson WI 42.9275 -88.8422 FCEW3 Popple River near Fence WI 45.7636 -88.4631 FLCW3 Eau Claire River near Fall Creek WI 44.8097 -91.2817 FLOW3 Menominee River near Florence WI 45.9511 -88.1869 FLRW3 Brule River near Florence WI 45.9608 -88.3158 FRKW3 Root River at Franklin WI 42.8736 -87.9958 FULW3 Yahara River at Fulton WI 42.8264 -89.1719 GALW3 Black River near Galesville WI 44.0603 -91.2875 GBYW3 Fox River at Green Bay WI 44.5286 -88.0100 GILW3 Oconto River near Gillett WI 44.8647 -88.3000 GMIW3 Kickapoo River at Gays Mills WI 43.3192 -90.8514 HCNW3 Rock River at Horicon WI 43.4503 -88.6322 HILW3 South Branch Baraboo River at Hillsboro WI 43.6528 -90.3358 HOWW3 Duck Creek above Howard WI 44.5336 -88.1294 JFFW3 Rock River at Jefferson WI 42.9961 -88.8069 JOFW3 Peshtigo River near Johnson Falls Dam WI 45.2878 -88.1597 KELW3 Eau Claire River near Kelly WI 44.9183 -89.5500 KEWW3 Kewaunee River near Kewaunee WI 44.4583 -87.5564 KINW3 Kinnickinnic River at Milwaukee WI 42.9975 -87.9264 KNGW3 Wisconsin River below Alice Lake Reservoir WI 45.4825 -89.6811 KOOW3 Tem Mile Creek at Nekoosa WI 44.2625 -89.8103 LACW3 Mississippi River at La Crosse WI 43.8011 -91.2586 LAFW3 Kickapoo River at La Farge WI 43.5742 -90.6436 LGLW3 Upper Wolf River at Langlade WI 45.1900 -88.7333 LODW3 Spring Creek at Lodi WI 43.3217 -89.5311 LTKW3 Wisconsin River below Rainbow Reservoir WI 45.8306 -89.5522 LVXW3 Wisconsin River near Lac Vieux Desert WI 46.1217 -89.1519 MAZW3 Black Earth Creek at Mazomanie WI 43.1764 -89.8183 MCAW3 Menominee River near Mcallister WI 45.3258 -87.6633 MEEW3 Milwaukee River at Milwaukee WI 43.1000 -87.9083 MILW3 Crawfish River at Milford WI 43.1000 -88.8494 MNSW3 Fox River At The Menasha Channel at Menasha WI 44.2031 -88.4289 MORW3 Red River near Gresham WI 44.8981 -88.8442 MRLW3 Prairie River near Merrill WI 45.2358 -89.6497 MTNW3 Pecatonica River at Martintown WI 42.5100 -89.8014 MTWW3 Manitowoc River near Manitowoc WI 44.1072 -87.7153 MUKW3 Mukwonago River at Mukwonago WI 42.8567 -88.3278 MUSW3 Wisconsin River at Muscoda WI 43.1983 -90.4431 NEIW3 Black River at Neillsville WI 44.5597 -90.6156 NEWW3 Wolf River at New London WI 44.3922 -88.7403 NIAW3 Menominee River near Niagara WI 45.7678 -87.9806 NMSW3 Fox River near New Munster WI 42.6108 -88.2256 NVLW3 Rock River at Lk. Koshkonong WI 42.8575 -88.9408 OAKW3 Oak Creek at South Milwaukee WI 42.9250 -87.8700 OCFW3 Oconto River near Oconto Falls WI 44.8575 -88.0536 OCTW3 Oconto River above Oconto WI 44.8606 -87.9839 ONTW3 Kickapoo River at Ontario WI 43.7214 -90.5883 OSHW3 Lake Winnebago at Oshkosh WI 44.0097 -88.5272 OSKW3 Fox River at Little Lake Buttes Des Morts WI 44.2089 -88.4703 OSSW3 Fox River at Oshkosh WI 44.0136 -88.5408 PBIW3 Menominee River near Pembine WI 45.5794 -87.7869 PCNW3 Fox River at Princeton WI 43.8511 -89.1333 PESW3 Peshtigo River near Peshtigo WI 45.0469 -87.7444 PFDW3 Peshtigo River near Porterfield WI 45.1433 -87.8006 PITW3 Yellow River at Pittsville WI 44.4369 -90.1317 PORW3 Wisconsin River at Portage WI 43.5361 -89.4736 RACW3 Root River at Racine WI 42.7511 -87.8242 RAYW3 Root River Canal at Raymond WI 42.8156 -87.9947 REAW3 Kickapoo River at Readstown WI 43.4494 -90.7650 RHIW3 Wisconsin River below Rhinelander WI 45.6417 -89.4217 RIBW3 Big Rib River at Rib Falls WI 44.9725 -89.9056 ROMW3 Bark River near Rome WI 42.9603 -88.6706 ROTW3 Wisconsin River at Rothschild WI 44.8858 -89.6347 ROYW3 Little Wolf River at Royalton WI 44.4125 -88.8653 RRLW3 Wisconsin River at Merrill WI 45.1781 -89.6811 RRVW3 Tomahawk River below Rice Reservoir WI 45.5397 -89.7478 RSPW3 Baraboo River at Rock Springs WI 43.4772 -89.9158 SAKW3 Milwaukee River at Saukville WI 43.3817 -87.9333 SEBW3 Sheboygan River at Sheboygan WI 43.7417 -87.7522 SHAW3 Upper Wolf River near Shawano WI 44.8358 -88.6250 SHIW3 Wolf River near Shiocton WI 44.4444 -88.5803 SOGW3 Kickapoo River at Soldiers Grove WI 43.3944 -90.7756 SPDW3 Spirit River below Spirit Reservoir WI 45.4381 -89.7425 SSDW3 Peshtigo River near Sandstone Dam WI 45.2339 -88.0683 STEW3 Kickapoo River at Steuben WI 43.1828 -90.8592 STKW3 Lake Winnebago at Stockbridge WI 44.0714 -88.3311 STPW3 Wisconsin River below Stevens Point WI 44.5031 -89.5839 STRW3 Big Eau Pleine River near Stratford WI 44.8219 -90.0794 TKDW3 Wisconsin River below Tomahawk Dam WI 45.4417 -89.7306 TRIW3 Spirit River near Spirit Falls WI 45.4494 -89.9797 VIOW3 Kickapoo River at Viola WI 43.5061 -90.6739 WATW3 Rock River at Watertown WI 43.1881 -88.7261 WDEW3 Wisconsin River at Wisconsin Dells WI 43.6050 -89.7564 WILW3 Tomahawk River below Willow Reservoir WI 45.7128 -89.8450 WIRW3 Wisconsin River at Wisconsin Rapids WI 44.3947 -89.8253 WKEW3 Fox River at Waukesha WI 43.0047 -88.2442 WNCW3 Wolf River at Lake Poygan WI 44.1108 -88.7125 WPCW3 Waupaca River near Waupaca WI 44.3294 -88.9961 WPNW3 South Branch Rock River at Waupun WI 43.6414 -88.7203 WTGW3 Wisconsin River below Whiting Dam WI 44.4864 -89.5753 WUUW3 Wisconsin River below Wausau WI 44.9603 -89.6344 WWTW3 Menomonee River at Wauwatosa WI 43.0456 -87.9997 ALDW2 Greenbrier River at Alderson WV 37.7242 -80.6417 BELW2 Tygart Valley River at Belington WV 39.0292 -79.9361 BKNW2 Buckhannon River near Buckhannon WV 39.0131 -80.1933 BRAW2 Guyandotte River at Branchland WV 38.2214 -82.2017 BUCW2 Greenbrier River at Buckeye WV 38.1881 -80.1300 BVAW2 Gauley River at Belva WV 38.2333 -81.1811 CLKW2 West Fork River near Clarksburg WV 39.2386 -80.3592 CLYW2 Elk River at Clay WV 38.4606 -81.0883 COGW2 Gauley River at Camden-On-Gauley WV 38.3658 -80.6011 CRSW2 Kanawha River at Charleston South Side Bridge WV 38.3475 -81.6361 DLYW2 Tygart Valley River near Dailey WV 38.8092 -79.8817 ELZW2 Little Kanawha River at Elizabeth WV 39.0589 -81.3897 FKLW2 South Branch Potomac River at Franklin WV 38.6356 -79.3381 GALW2 Ohio River at Robert C. Byrd Lock WV 38.6803 -82.1875 GCPW2 Cacapon River near Great Cacapon WV 39.5822 -78.3100 GLEW2 Little Kanawha River at Glenville WV 38.9328 -80.8386 GRTW2 Little Kanawha River at Grantsville WV 38.9217 -81.0978 HFEW2 Potomac River at Harpers Ferry WV 39.3236 -77.7289 HINW2 New River at Hinton WV 37.6703 -80.8928 HNTW2 Ohio River at Huntington WV 38.4133 -82.5006 KANW2 Kanawha River at Kanawha Falls WV 38.1381 -81.2144 KRMW2 Tug Fork River at Kermit WV 37.8372 -82.4089 LITW2 Tug Fork River at Litwar WV 37.4856 -81.8439 LOGW2 Guyandotte River at Logan WV 37.8422 -81.9789 MBGW2 Opequon Creek near Martinsburg WV 39.4236 -77.9389 MILW2 Shenandoah River at Millville WV 39.2819 -77.7894 MNAW2 Guyandotte River at Man WV 37.7403 -81.8769 MOFW2 South Fork South Branch Potomac River near Moorefield WV 39.0122 -78.9564 MORW2 Monongahela River at Morgantown WV 39.6200 -79.9692 MOUW2 Ohio River at Moundsville WV 39.9053 -80.7564 MRLW2 Greenbrier River at Marlinton WV 38.2175 -80.0914 MTWW2 Tug Fork River at Matewan WV 37.6211 -82.1750 PARW2 Ohio River at Parkersburg WV 39.2689 -81.5639 PETW2 South Branch Potomac River near Petersburg WV 38.9911 -79.1761 PHIW2 Tygart Valley River at Philippi WV 39.1503 -80.0389 PINW2 Guyandotte River at Pineville WV 37.5819 -81.5372 POPW2 Ohio River at Point Pleasant WV 38.8439 -82.1386 PSNW2 Cheat River near Parsons WV 39.1228 -79.6814 QUSW2 Elk River at Queen Shoals WV 38.4708 -81.2842 RACW2 Ohio River at Racine Lock WV 38.9169 -81.9122 RNKW2 Greenbrier River at Renick Coop/Ww WV 38.0000 -80.3667 ROWW2 Cheat River at Rowlesburg WV 39.3422 -79.6706 SHEW2 Potomac River at Shepherdstown WV 39.4344 -77.8019 SISW2 Pocatalico River at Sissonville WV 38.5261 -81.6314 SPRW2 South Branch Potomac River near Springfield WV 39.4469 -78.6544 TORW2 Coal River at Tornado WV 38.3389 -81.8417 WELW2 Ohio River at Wellsburg WV 40.2753 -80.6119 WHLW2 Ohio River at Pike Island WV 40.1497 -80.7017 WILW2 Tug Fork River at Williamson WV 37.6731 -82.2803 WLGW2 Ohio River at Wheeling WV 40.0572 -80.7286 WTNW2 West Fork River at Weston WV 39.0292 -80.4739 BBRW4 South Fork Shoshone River above Buffalo Bill Reservoir WY 44.4328 -109.2517 BCCW4 Clear Creek at Buffalo WY 44.3433 -106.7589 BHBW4 Big Horn River at Basin WY 44.3833 -108.0356 BOSW4 Laramie River near Bosler WY 41.5547 -105.6828 BPNW4 New Fork River near Big Piney WY 42.5672 -110.1506 BRWU1 Bear River above Woodruff WY 41.5056 -111.0139 CPRW4 North Platte River at Casper WY 42.8536 -106.4644 CROW4 Wind River near Crowheart WY 43.2425 -109.2672 DAYW4 Tongue River at Dayton WY 44.8494 -107.3039 DUBW4 Wind River near Dubois WY 43.5786 -109.8422 ECRW4 Encampment River at Encampment WY 41.3033 -106.7119 FLAW4 Laramie River near Fort Laramie WY 42.2006 -104.5378 GBFW4 Green River below Fontenelle Reservoir WY 42.0211 -110.0497 GLNW4 North Platte River near Glenrock WY 42.8361 -105.7583 GRRW4 Green River at Green River WY 41.5164 -109.5839 GYBW4 Big Horn River at Greybull WY 44.4886 -108.0469 HANW4 Medicine Bow River near Hanna WY 42.0097 -106.5125 HMFW4 Hams Fork River above Viva Naughton WY 42.1106 -110.7097 JKSW4 Snake River near Jackson WY 43.3722 -110.7386 KAYW4 Middle Fork Powder River above Kaycee WY 43.6475 -107.0117 KINW4 Wind River near Kinnear WY 43.1428 -108.7089 LABW4 Green River near La Barge WY 42.1928 -110.1625 LLRW4 Laramie River at Laramie WY 41.3278 -105.6072 LSDW4 Little Snake River near Savery WY 41.0128 -107.4792 LTAW4 Blacks Fork near Little America WY 41.5461 -109.7783 MIKW4 Crow Creek at Test Site WY 41.1311 -104.8281 MIMW4 Crow Creek at Test Site #2 WY 41.1311 -104.8281 NFSW4 North Fork Shoshone River at Wapiti WY 44.4697 -109.4297 ORIW4 North Platte River near Orin WY 42.6525 -105.1586 ROKW4 Rock Creek near Buffalo WY 44.4561 -107.0450 RVTW4 Little Wind River near Riverton WY 42.9975 -108.3756 SALW4 Salt River near Etna WY 43.0797 -111.0372 SFRW4 Smiths Fork River above Robertson WY 41.0539 -110.3986 SINW4 North Platte River near Sinclair WY 41.8722 -107.0569 SLOW4 Shoshone River near Lovell WY 44.8386 -108.4344 SRAW4 North Platte River at Saratoga WY 41.4550 -106.8053 SXXW4 Powder River at Sussex WY 43.6956 -106.3672 WDRW4 Wind River at Riverton WY 43.0106 -108.4617 WODW4 Laramie River near Woods Landing WY 41.1383 -105.9797 YLOW4 Yellowstone River at Fishing Bridge WY 44.5675 -110.5006