River Levels

Streamflow conditions for rivers, streams, and tributaries across the nation

Rivers Gauges Max Discharge (cfs) vs Average (%)
Little-Menomonee-River 2 9 -74.99
Dugdemona-River 1 1,210 -24.3
Pompton-River 1 578 +4
Wapsipinicon-River 4 1,330 -46.16
Yellow-River 11 2,060 -13.03
Uncompahgre-River 5 176 -6.79
Ausable-River 1 311 -30.01
Portage-River 1 107 -67.11
Gauley-River 2 954 -75.31
Wolf-River 7 1,680 -37.55
Pithlachascotee-River 3 11 +0.45
Little-Snake-River 3 128 -6.34
Mill-River 2 71 -17.5
Fisher-River 1 252 +33.76
Jones-River 1 24 -47.57
Willamette-River 6 61,800 -22.79
Sucarnoochee-River 1 394 -67.59
Cacapon-River 1 251 -78.14
Ohio-River 4 89,700 -70.26
Missisquoi-River 3 1,800 +31
Methow-River 4 544 +5.27
Cowanesque-River 3 171 -23.43
Waihee-River 1 36 -17.3
Bouquet-River 1 717 +6.86
Nantahala-River 1 162 -52.01
Sweetwater-River 3 27 -75.5
Belle-River 1 181 -0.55
Lake-Fork-River 2 31 -20.92
Poteau-River 3 4,200 +42.57
Florida-River 2 24 -19.59
Hudson-River 7 14,800 -6.62
Saline-River 9 2,130 -45.24
Raquette-River 3 2,820 -27.18
South-Raccoon-River 1 222 -35.87
Collins-River 1 312 -83.2
Schuylkill-River 6 2,280 -38.56
North-Mayo-River 1 174 +18.14
Yellow-Medicine-River 1 9 -96.95
Whitewater-River 7 462 -81.04
Waimea-River 1 25 -94.03
Ocmulgee-River 4 5,050 -20.67
Etowah-River 6 2,540 -34.14
Coosawhatchie-River 1 149 +24.62
Deep-River 4 980 -31.31
Little-River 36 6,290 -1.44
Chicopee-River 1 1,720 +35.07
Escanaba-River 1 928 +3.65
Ogeechee-River 3 2,660 +1.02
Eagle-River 4 150 -14.53
Mount-Hope-River 1 51 -15.11
Eightmile-River 1 48 -7.52
Little-Minnesota-River 1 36 +49.47
Neches-River 6 7,440 -19.68
Milwaukee-River 3 980 -80.32
Black-River 23 7,600 -49.82
Carlls-River 1 25 -7.6
Elwha-River 1 1,990 +17.87
Piney-River 4 154 -61.89
Duck-River 7 2,030 -70.46
Piedra-River 1 37 -42.84
Dolores-River 7 78 -37.38
Norwalk-River 1 43 -27.2
Vermilion-River 7 500 -63.6
Clackamas-River 3 4,040 -46.68
Rush-River 1 10 +96.08
Tioughnioga-River 1 325 -36.15
Solomon-River 4 279 -55.88
Roaring-River 1 50 -58.72
Econfina-River 1 146 +2.31
Enoree-River 3 413 -43.01
Mattole-River 2 887 -84.61
Wenatchee-River 3 2,310 +41.94
Patuxent-River 3 329 -48.5
Macatawa-River 1 39 -16.53
Raccoon-River 4 253 -93.88
Baker-River 1 161 -7.85
Nottoway-River 3 1,380 -43.74
Trent-River 1 239 +7.28
Rippowam-River 1 23 -54.96
Whippany-River 3 128 -2.25
Nooksack-River 3 3,820 -7.28
Upper-River 1 14 -33.93
Shell-Rock-River 1 339 -45.43
Bark-River 2 66 -10.5
Choptank-River 1 168 -27.39
Humptulips-River 1 1,470 -63.21
South-Umpqua-River 2 1,930 -81.56
Price-River 1 25 -31
Saco-River 2 2,550 -18.92
Flathead-River 4 8,730 -14.81
Tualatin-River 2 6,040 +47.32
Raritan-River 2 794 -54.79
Pacolet-River 2 460 -8.87
Chikaskia-River 2 182 -25.1
Namekagon-River 1 119 -4.42
Passaic-River 4 1,680 +25.34
South-River 8 239 -15.01
Tolt-River 1 1,070 +24.38
Similkameen-River 1 1,100 +29.67
Little-Wood-River 2 72 +14.54
Kinnickinnic-River 2 107 -13.88
Pamunkey-River 1 936 -18.43
Boyer-River 1 130 -64.27
Tarkio-River 1 75 -72.41
Navarro-River 1 27 -96.94
Eleven-Point-River 1 762 -10.26
Patapsco-River 1 135 -60.54
Little-Chazy-River 1 17 -65.79
Crooked-River 3 1,400 -0.62
Beaverhead-River 3 249 -13.18
North-River 7 280 -48.2
Illinois-River 12 10,800 -17.7
Lostmans-River 1 11,400 +17.81
Trap-Rock-River 1 18 -18.8
Sopchoppy-River 1 111 -6.84
Mousam-River 1 325 +45.46
Soldier-River 1 99 -49.98
Little-Sandy-River 2 179 -71.77
Pahsimeroi-River 1 265 -3.42
Falling-River 1 179 +13.09
Tomoka-River 1 5 -77.01
Little-Fork-River 1 518 -58.25
Pawtuxet-River 1 255 -31.2
Bullpasture-River 1 97 -11.21
Tahquamenon-River 1 525 -43.66
Navidad-River 2 16 -36.77
Palouse-River 2 863 +0.35
Gunnison-River 4 791 -38.17
Upper-Iowa-River 3 343 -26.17
Cranberry-River 1 48 -92.85
Saxtons-River 1 124 -59.89
Salamonie-River 2 64 -83.36
Iron-River 1 90 -25.76
Deadwood-River 1 52 -47.9
Encampment-River 2 103 +15.73
Pawcatuck-River 2 832 +6.2
Nottely-River 1 199 -24.72
Forest-River 2 29 -14.71
Kawishiwi-River 1 39 -43.25
Newaukum-River 1 591 -52.17
Yantic-River 1 209 +1.54
Clam-River 1 118 -10.81
Pemigewasset-River 2 983 -28.06
Apalachicola-River 3 26,100 -16.99
Wakulla-River 1 794 +8.1
Sudbury-River 1 228 +11.9
Waupaca-River 1 431 +34.23
Hazel-River 1 379 +5.35
Antoine-River 1 140 -28.06
Colo-River 1 1,210 -22.27
Broad-River 8 5,100 -22.79
Ellis-River 1 899 +25.82
Hubbard-River 1 26 -20.21
Angelina-River 1 1,020 +23.06
Osage-River 2 3,180 -71.56
Little-Muskegon-River 1 315 -24.94
Jarbidge-River 1 5 -15.05
Platte-River 13 8,580 -48.6
Quinsigamond-River 1 75 +48.52
Rockfish-River 1 142 -19.42
Caloosahatchee-River 1 822 -30.74
Kalamazoo-River 4 1,550 -44.89
Napa-River 2 1 -99.75
Mattawamkeag-River 1 6,360 +17.78
Sturgeon-River 4 852 +169.81
Wells-River 1 127 -53.37
Fivemile-River 1 3 -13.6
Ventura-River 1 3 -88.85
West-River 1 195 -37.2
Long-Prairie-River 1 274 -4.2
Beaver-River 6 2,000 -57.22
Cartecay-River 1 230 -40.49
Little-Satilla-River 1 335 -20.28
Peconic-River 1 34 +16.37
Kewaunee-River 1 12 -64.71
Roaring-Fork-River 5 360 -18.89
Wailuku-River 1 36 -98.96
Bearcamp-River 1 74 -51.44
Chipuxet-River 1 25 -4.36
Sevier-River 5 263 -13.89
Menominee-River 7 10,100 +51.27
Hunt-River 1 53 -31.39
Patoka-River 3 331 -85.84
Warm-Springs-River 1 420 -34.92
Tuckahoe-River 1 39 -24.58
Little-Wekiva-River 1 9 -45.98
Nonewaug-River 1 22 -30.39
Natalbany-River 1 16 -66.06
Auglaize-River 3 591 -72.22
Yalobusha-River 1 143 -92.25
Verde-River 6 307 +29.15
Blackstone-River 3 1,330 +31.67
Rooster-River 1 10 -10.42
Judith-River 1 441 -11.18
Tiffin-River 2 148 -83.63
Canadian-River 10 576 -47.01
Leaf-River 4 2,200 -77.35
Assabet-River 1 304 +26.73
West-Fork-River 1 497 -69.54
Conecuh-River 4 2,540 -45.56
Rivanna-River 1 677 -28.45
Heart-River 5 59 -73.88
Turtle-River 1 24 +34.46
Naselle-River 1 411 -73.21
Tyger-River 1 771 -36.24
Trout-River 1 45 +11.14
Caddo-River 1 136 -13.8
Embarrass-River 1 220 +10.55
Sauk-River 3 3,880 -4.93
Strong-River 1 168 -66.14
Wabash-River 12 13,700 -79.9
Lavaca-River 2 11 -56.56
Nestucca-River 1 1,390 -46.29
Kiamichi-River 3 286 -67.13
Sheyenne-River 9 485 +11.37
Winnebago-River 1 113 -73.13
Maumelle-River 2 8 -67.86
Meramec-River 5 1,480 -71.8
Whetstone-River 1 21 -74.32
Kettle-River 3 3,030 +89.08
Casselman-River 2 280 -69.28
Cohansey-River 1 44 -2.18
Missouri-River 25 47,100 -32.88
Ontonagon-River 1 1,010 -36.59
Baraboo-River 1 403 -15.58
Cucharas-River 1 4 -79.92
Muscatatuck-River 1 67 -81.81
Oswegatchie-River 2 982 -59.92
Michigamme-River 1 932 +4.47
Reddies-River 1 191 +4.5
Kishwaukee-River 2 477 -61.7
Columbia-River 4 346,000 +17.22
Leon-River 5 22 +49.35
Wanaque-River 2 76 +41.16
Arikaree-River 1 0 -99.17
Escambia-River 2 4,530 -47.32
Merrimack-River 3 10,300 +10.96
Puyallup-River 4 4,140 -4.91
Seboeis-River 1 457 +14.11
Pocomoke-River 1 70 -33.53
Chassahowitzka-River 1 79 +6.76
Dismal-River 1 251 +11.12
Trout-Creek 1 27 +5.86
Little-Delaware-River 1 40 -54.84
Herring-River 1 7 -31.43
Queets-River 1 3,290 -55.65
Sprague-River 1 208 -57.95
Concord-River 1 1,250 +55.97
Lookout-Creek 1 90 -66.4
Pease-River 1 20 +15.86
Raging-River 1 123 -37.77
Meherrin-River 2 551 -46.3
Upper-Babocomari-River 1 0 -84.3
Tippecanoe-River 6 547 -70.9
Wintering-River 1 0 -94.63
Alapaha-River 3 2,210 +27.19
Cossatot-River 1 59 -22.65
Savannah-River 6 84,600 -15.04
Deschutes-River 5 5,450 -20.99
Cedar-River 16 2,520 -59.91
Nolan-River 1 11 -62.74
Klamath-River 6 11,400 -72.26
Appomattox-River 3 860 -47.52
Mimbres-River 1 4 -76.7
Wood-River 3 367 +2.66
Boiling-River 1 21 +1.81
Nashua-River 1 986 +37.4
Guest-River 1 77 -70.22
Lumber-River 3 3,300 +56.29
Magnolia-River 1 23 -3.42
Little-Shenango-River 1 88 -39.8
Fraser-River 3 44 -8.33
Rappahannock-River 2 1,340 -54.21
Lamprey-River 1 485 +30.18
Conasauga-River 2 524 -76.1
Link-River 1 597 +8.67
Weekeepeemee-River 1 36 -28.79
Bogue-Chitto-River 1 1,420 -39.97
Malad-River 1 0 -99.97
Maries-River 1 69 -43.12
South-Grand-River 2 36 -85.72
Conemaugh-River 3 1,180 -62.19
Marias-River 3 599 +4.68
Fall-River 3 3 -36.64
Tomorrow-River 1 27 +4.36
Cispus-River 1 2,120 +66.55
Rainbow-River 1 652 -5.09
Agua-Fria-River 3 3 +0.78
Umatilla-River 3 788 -14.95
Yockanookany-River 2 208 -85.84
Blanchard-River 6 176 -78.3
Potlatch-River 1 397 -45.67
Seneca-River 1 2,520 -43.99
Nehalem-River 2 3,140 -53.96
Hanalei-River 1 105 -58.74
Clark-Fork-River 1 8,230 +20.06
Chenango-River 3 1,620 -37.53
Yampa-River 7 311 -28.27
Swannanoa-River 1 128 -44.48
Wisconsin-River 6 25,300 +52.87
Noxubee-River 2 461 -87.62
Sheboygan-River 1 1,310 +32.59
Muscoot-River 2 35 -34.23
Yellow-Creek 1 0 -53.33
Nemadji-River 1 613 +16.61
Mancos-River 1 0 -99.89
Pearl-River 8 6,250 -65.39
Styx-River 1 200 -17.27
Queen-River 1 38 -38.65
Shoal-River 2 751 -4.86
Salmon-River 8 3,820 -8.31
Coosawattee-River 3 1,060 -56.78
Boeuf-River 1 10 -93.94
Peshtigo-River 3 673 -59.56
Calawah-River 1 826 -52.12
Presumpscot-River 1 239 -15.32
Maury-River 2 470 -58.88
Middle-Saluda-River 1 68 -27.83
Rogue-River 10 4,030 -73.34
Thief-River 1 109 +222.49
Current-River 3 2,450 -13.39
Sulphur-River 3 8,470 +16.11
Pequannock-River 2 161 +27.53
Siletz-River 1 1,470 -60.96
Tuscarawas-River 4 1,770 -44.59
Paint-River 1 246 -37.52
Anclote-River 2 12 -45.98
Pend-Oreille-River 2 19,300 +13.72
Flatrock-River 2 255 -71.96
Sacramento-River 12 78,900 +14.51
South-Saluda-River 1 31 -53.68
Snohomish-River 1 11,100 +4.69
Escalante-River 1 1 -69.59
Conejos-River 2 10 +6.73
Skokomish-River 1 1,980 -42.04
Wild-River 1 258 -18.1
Flambeau-River 1 1,290 +6.61
Little-Schuylkill-River 1 81 -1.87
Apple-River 1 172 -24.78
Ortega-River 1 23 -29.14
Alafia-River 1 184 -8.86
Clarion-River 4 682 -56.01
Guadalupe-River 18 774 +1.83
Cashie-River 1 64 -54.66
Pomperaug-River 1 99 -16.14
Little-Pigeon-River 1 310 -48.25
Little-Manatee-River 2 60 -39.11
Little-Washita-River 3 67 +67
Fremont-River 1 68 -9.27
Otter-Tail-River 2 616 +20.55
East-Verde-River 1 6 -69.93
English-River 1 104 -45.87
Gasconade-River 3 1,530 -58.16
Alsea-River 1 1,890 -55.24
Aransas-River 1 3 -34.37
Prairie-River 3 163 -31.61
Second-River 1 12 +15.87
Shepaug-River 1 61 -9.24
Jump-River 1 258 -40.93
Thornapple-River 1 322 -14.7
Saluda-River 6 1,350 -40.99
South-Anna-River 1 317 -21.75
Independence-River 1 96 -60.64
Ponaganset-River 1 32 -13.93
Diamond-River 1 409 -34.87
Shetucket-River 2 1,800 +44.78
Pocono-Creek 1 68 -17.16
Emory-River 1 534 -74.04
Redwood-River 2 50 -89.94
Gallinas-River 2 3 -39.05
Sisquoc-River 2 0 -99.21
Vermillion-River 2 93 -31.47
Kanawha-River 2 9,800 -60.98
Tongue-River 7 818 +126.44
Purgatoire-River 7 0 -95.4
North-Platte-River 4 3,420 +126.14
Animas-River 9 11 -19.8
Neuse-River 5 8,490 +6.54
Ammonoosuc-River 1 71 -35.69
Payette-River 4 1,200 -29.64
Allegheny-River 10 12,000 -55.65
Chickahominy-River 1 265 -47.33
Michigan-River 2 13 -69.66
White-Salmon-River 1 1,480 +12.76
Calcasieu-River 3 2,710 +58.73
Lamar-River 1 209 -26.99
Hillsborough-River 5 147 -13.87
Toutle-River 1 3,050 -20.44
Bighorn-River 4 7,780 +182.09
Manitowoc-River 1 198 +8.39
Owyhee-River 4 255 -47
Nisqually-River 4 2,600 +17.85
Fenholloway-River 2 111 -28.63
Nolichucky-River 3 1,900 -46.26
Tittabawassee-River 1 1,340 -31.4
Mississinewa-River 1 196 -67.96
Cass-River 1 241 -47.03
Ecorse-River 1 3 -16.52
Little-Spokane-River 1 480 +57.25
Straight-River 2 198 -10.77
Ocklawaha-River 5 775 -6.98
Falls-River 4 2,490 +52.88
Naugatuck-River 2 483 -11.38
Fowl-River 1 23 -4.42
East-River 3 99 -1.16
Halls-River 1 84 -25.61
Piceance-Creek 1 22 -5.13
Humboldt-River 8 60 -47.05
Hood-River 1 1,250 -20.46
Stehekin-River 1 387 -9.02
North-Meherrin-River 1 26 -41.31
Maquoketa-River 2 1,160 -39.68
Millers-River 2 1,110 +0.13
Wainiha-River 1 42 -91.47
Little-Sioux-River 3 382 -89.25
Oconee-River 6 3,830 -56.74
Neshanic-River 1 18 -40.49
Otselic-River 1 126 -51.2
Quashnet-River 1 14 -34.89
Neosho-River 8 1,130 -89.04
Bruneau-River 2 70 -41.02
Tenmile-River 1 298 -19.71
South-Kawishiwi-River 1 123 -22.8
Contoocook-River 3 1,040 +6.39
Chippewa-River 7 6,700 -7.59
Okanogan-River 3 1,740 +15.61
Kings-River 1 351 -33.63
Uinta-River 2 39 -7.17
Salem-River 1 20 -7.22
Kaskaskia-River 8 2,620 -56.88
Pond-River 1 26 -94.93
Quaboag-River 1 487 +22.16
Back-River 1 2,390 -21.04
Yakima-River 4 4,270 +31.5
Lower-Atchafalaya-River 1 125,000 -27.12
Wilson-River 1 980 -70
Hockanum-River 1 151 +27.2
Castor-River 1 246 -55.16
Wakarusa-River 2 13 -94.94
Loosahatchie-River 1 165 +9.17
Whiterocks-River 1 42 +17.3
Mullica-River 1 100 -33.65
Unadilla-River 1 567 -36.09
Gibbon-River 1 81 -8.31
Jackson-River 3 364 -59.79
Mukwonago-River 1 63 +9.46
Mermentau-River 1 332 -93.53
White-River 37 268 +5.76
Valley-River 1 168 -55.08
Williams-River 2 275 -25.88
Carson-River 6 93 -51.85
Ducktrap-River 1 60 -6.25
Wallkill-River 1 1,130 -1.64
Redwater-River 2 183 -16.82
Musselshell-River 6 160 +25.49
Ogden-River 2 22 -12.99
Clearwater-River 7 6,400 -2.64
Walla-Walla-River 1 905 -24.12
Bois-Brule-River 1 161 -38.55
Mora-River 2 3 -42.52
Tallulah-River 2 184 -36.14
Washita-River 8 977 -41.57
Floyd-River 2 346 -4.74
Little-Cottonwood-River 1 14 -64.77
Willow-River 1 138 +25.91
Chipola-River 2 1,400 -11.71
Shawsheen-River 2 74 +35.83
Aberjona-River 1 29 +25.22
Merced-River 2 32 -74.81
West-Okaw-River 1 1 -99.21
Quinapoxet-River 1 107 +40.09
Neversink-River 4 434 -21.26
Ararat-River 1 352 -5.6
Pecatonica-River 4 1,770 -19.73
Paskamanset-River 1 56 -35.2
Nipmuc-River 1 45 +70.36
Juniata-River 4 2,290 -50.93
Mohawk-River 4 4,730 -7.8
Walloomsac-River 1 140 -16.81
Huron-River 4 408 -31.44
First-Broad-River 1 102 +2.19
Russian-River 10 279 -89.63
Dowagiac-River 1 313 -5.94
Chemung-River 3 2,060 -7.93
Mechums-River 1 109 -17.08
Pootatuck-River 1 36 -24.72
Lower-River 1 61 -28.76
Sabinal-River 3 2 -59.67
Niangua-River 2 208 -61.43
Lehigh-River 6 2,860 -9.67
Mashel-River 1 225 -62.69
Pascagoula-River 2 6,370 -63.79
Oconaluftee-River 1 382 -49.44
Ford-River 1 209 -46.68
Hyco-River 1 126 -48.04
Minnesota-River 7 2,430 -45.45
South-Mayo-River 1 148 +1.77
Muskingum-River 4 5,270 -64.23
Huerfano-River 3 10 -50.03
Bourbeuse-River 2 268 -57.25
Turkey-River 4 720 -9.58
South-Yamhill-River 1 2,230 -67.21
Waccamaw-River 3 5,360 +92.33
Spoon-River 2 264 -77
Little-Calumet-River 3 80 -29.05
Pere-Marquette-River 1 791 -0.18
Cape-Fear-River 1 2,570 -51.19
Mojave-River 1 13 -8.63
Skookumchuck-River 3 408 -41.09
Llano-River 3 161 +40.1
Robinson-River 1 230 -6.55
Manistique-River 1 1,310 -48.67
Buffalo-River 8 810 -22.39
Boone-River 1 27 -97.95
Ouachita-River 3 14,700 +47.28
Indian-River 2 313 -28.52
Westfield-River 2 865 -3.71
Ocheyedan-River 1 24 -85.46
Presque-Isle-River 1 199 -38.2
Yahara-River 6 411 -45.63
Quinnipiac-River 2 197 -8.64
Chelan-River 1 83 -1.86
South-Yadkin-River 1 480 +5.21
Little-Androscoggin-River 1 136 +18.78
Laramie-River 3 34 -42.11
Jordan-River 2 200 +3.41
Rifle-River 1 233 -17.86
Oneida-River 1 3,410 -13.42
Nezinscot-River 1 509 +13.87
Taunton-River 1 573 -15.28
Chiwawa-River 1 180 -9.82
Maurice-River 1 207 -12.98
Loup-River 2 2,030 +157.89
Mazon-River 1 184 -45.26
Nanticoke-River 1 198 +62.94
Lackawaxen-River 3 446 -3.25
Moose-River 1 56 -36.37
Manasquan-River 2 75 -48.4
Gros-Ventre-River 2 177 -1.12
Flat-River 2 121 -21.48
Hocking-River 2 407 -78.67
Usquepaug-River 1 72 -28.21
Little-Auglaize-River 1 14 -68.93
Biloxi-River 1 51 -38.33
Clyde-River 1 146 -27.58
Jemez-River 1 20 -10.45
Bill-Williams-River 2 26 -1.89
Squannacook-River 1 159 +24.37
Boise-River 5 837 -8.07
Piscataquog-River 1 543 +51.99
Little-Wind-River 1 330 -8.44
Woonasquatucket-River 1 144 +55.74
Greenbrier-River 4 872 -81.55
Cheat-River 2 731 -82.05
Sangamon-River 6 472 -88.93
Samish-River 1 287 -5.4
Alamosa-River 3 223 +199.97
Salt-River 11 471 +4.72
Winnipesaukee-River 1 782 -31.7
Rabbit-River 1 39 -42.66
Upper-Ammonoosuc-River 1 408 -0.24
Moyie-River 1 147 -6.37
Flint-River 12 7,650 -26.51
Malheur-River 1 76 -13.72
Watonwan-River 1 76 -65.02
Elevenpoint-River 1 926 -26.7
Salinas-River 5 66 -25.17
Little-Cottonwood-Creek 1 1 -29.41
Paluxy-River 1 17 -21.71
Elkhorn-River 5 1,450 +23.61
Natchaug-River 1 725 +84.13
Ruby-River 3 106 +3.16
Breitenbush-River 1 501 -57.24
Looking-Glass-River 1 176 -58.26
Blue-River 15 979 +28.48
Mulberry-River 1 337 -31
Otter-River 1 62 +3.29
Little-Cahaba-River 3 45 -52.74
Twisp-River 1 330 +37.79
Scott-River 1 356 -60.92
Cowpasture-River 1 284 -68.59
Palatlakaha-River 2 19 -67.26
Cumberland-River 4 8,340 -78.13
Nishnabotna-River 1 453 -85.95
Deerfield-River 2 1,420 -16.78
Cheoah-River 1 110 -63.88
Minam-River 1 173 -45.51
Glover-River 1 150 -23.58
Imperial-River 1 38 +52.41
Spirit-River 1 20 -87.04
Coosa-River 2 6,430 -47.53
Musconetcong-River 2 258 -6.06
Wind-River 4 4,660 +221.55
Pawnee-River 2 5 -67
Bush-River 1 68 -32.56
Sinsinawa-River 1 35 +40.57
Withlacoochee-River 18 2,560 +51.69
Molalla-River 1 1,310 -50.68
Cuivre-River 1 91 -79.15
Croton-River 1 214 -63.95
Walnut-River 1 146 -67.06
Brule-River 2 1,490 +9.4
Chewuch-River 1 87 -0.63
Laplatte-River 1 22 -82.74
Mississippi-River 20 582,000 -18.55
Kickapoo-River 2 686 -4.12
Kokosing-River 1 125 -45.2
Stonycreek-River 1 374 -53.04
North-Nashua-River 2 279 +7.72
Dungeness-River 1 390 -42.66
Yadkin-River 5 3,700 -10.82
Ipswich-River 2 248 +38.35
Petit-Jean-River 2 2,510 +42.92
Vermejo-River 1 1 -71.17
Lemonweir-River 1 322 -26.65
Sequatchie-River 1 328 -76.87
Frio-River 3 33 -43.38
Saranac-River 1 673 -36.55
Little-Tallahatchie-River 1 224 -78.91
Languille-River 2 744 -59.6
Still-River 2 110 -14.89
Pound-River 1 175 -40.21
Crow-River 1 360 -67.73
Applegate-River 3 857 -44.43
Clinch-River 4 1,250 -66.93
Lost-River 1 22 -14.84
Pajaro-River 1 35 -73.61
South-Skunk-River 4 246 -52.96
Muskegon-River 2 2,350 +8.85
Clarks-River 2 38 -78.46
Sleepers-River 1 61 -32.93
Swiftwater-Creek 1 26 +48.34
Mackinaw-River 2 401 -52.64
Tangipahoa-River 2 645 -42.91
Republican-River 11 646 -34.04
Provo-River 5 155 +0.19
Middle-Fork-River 1 101 -80.81
Cascade-River 1 801 -1.49
Winooski-River 2 965 -48.91
Little-Ausable-River 1 32 -3.19
Rapid-River 1 11 -97.4
Marmaton-River 3 167 -77.58
Cottonwood-River 3 98 -60.99
Hatchie-River 3 2,790 -53.86
Sabana-River 1 2 +37.74
Waccasassa-River 1 320 -49.87
Santa-Clara-River 3 9 +1.88
Park-River 1 3 -90.04
North-Santiam-River 3 8,250 +51.1
Silver-River 2 654 -5.97
Yaak-River 1 266 +26.97
Pembina-River 2 33 -68.06
Bitterroot-River 3 989 +1.19
West-Nishnabotna-River 2 235 -65.6
Slate-River 1 198 -21.62
Gallatin-River 2 683 +3.96
Wild-Rice-River 4 182 +20.79
Volga-River 1 117 -42.22
Chadakoin-River 1 545 -20.9
Banister-River 1 548 -30.43
Hawlings-River 1 23 -41.38
Monocacy-River 3 478 -74.35
Smith-River 12 3,050 -77.88
Root-River 6 705 -16.73
Carmel-River 2 11 -92.46
Cowlitz-River 4 16,000 -4.78
Little-Muddy-River 1 14 +16.32
Duckabush-River 1 410 -55.48
Cosumnes-River 1 41 -88.6
Moshassuck-River 1 47 +15.23
Spokane-River 4 8,580 +45.67
Homosassa-River 1 627 +30.99
Willimantic-River 1 306 +44.63
Sevenmile-River 1 24 -85.63
Mills-River 1 187 -28.81
Sheepscot-River 1 206 -56.37
Fish-River 2 2,960 +44.39
Cannon-River 1 433 -14.68
Little-Tallapoosa-River 3 381 -50.05
Bluestone-River 2 296 -52.39
East-Nishnabotna-River 2 97 -75.92
Farmington-River 2 1,070 -5.95
Hardware-River 1 194 +11.62
Mattaponi-River 2 850 +22.6
French-Broad-River 7 3,060 -34.27
Branch-River 1 246 +33.42
Hoosic-River 3 734 -12.83
Gardner-River 1 94 -5.24
Carrabassett-River 1 2,150 +7.77
Little-Miami-River 2 556 -69.12
Dearborn-River 1 54 -31.4
Lower-Little-River 1 45 +5.94
Oswego-River 2 5,580 -43.84
Mettawee-River 1 208 -26.86
Priest-River 2 1,380 +42.05
Crystal-River 1 36 -25.81
Chattahoochee-River 13 5,130 +85.45
Toccoa-River 1 496 -29.45
Little-Yadkin-River 1 34 -18.96
Neponset-River 3 579 +87.15
Edwards-River 2 244 -17.85
Hoko-River 1 265 -70.02
Popple-River 1 73 -5.25
Finley-Creek 1 135 -46.37
Coldwater-River 1 86 -78.96
Cross-River 2 52 -19.81
Christina-River 1 17 -18.96
South-Platte-River 17 93 -85.19
Iowa-River 8 3,330 -71.08
Calfpasture-River 1 69 -75.41
Sacandaga-River 2 4,090 +26.41
Stillwater-River 4 353 -4.23
Little-Salmon-River 2 152 -33.15
North-Canadian-River 11 498 -6.9
Galien-River 1 77 -20.68
Watauga-River 2 618 -61.23
Long-Pine-Creek 1 212 +19.87
N.Umpqua-River 4 999 +131.25
Little-Bear-River 1 39 -21.1
Outlet-River 1 138 +20.26
Chattooga-River 3 654 -36.34
Pack-River 1 155 +32.89
North-Oconee-River 1 260 -42.94
Medina-River 3 77 -38.73
Steinhatchee-River 1 143 -31.87
Crow-Wing-River 2 1,080 +9.71
Luckiamute-River 1 1,320 -56.35
Muddy-River 2 44 +6.73
Warner-River 1 277 +18.58
Comal-River 3 270 +4.85
Roanoke-River 6 8,710 -28.82
Grant-River 1 286 -30.96
Basswood-River 1 443 -33.27
Huasna-River 1 0 -89.76
American-River 2 1,120 -17.09
Middle-Tyger-River 2 144 +1.22
Mckenzie-River 8 7,340 -17.93
Threemile-River 1 246 +25.59
Raft-River 1 4 -30.55
Escatawpa-River 1 420 +10.44
Johns-River 1 371 -26.05
Shoshone-River 1 417 -26.92
Sugar-River 2 411 -27.34
Noyo-River 1 31 -95.37
Souris-River 6 18 -92.78
Grass-River 1 721 -31.37
Tellico-River 1 201 -54.23
Rockaway-River 1 173 -14.94
Apalachee-River 2 178 -33.06
Little-Juniata-River 1 232 -29.6
Thompson-River 3 201 +14.42
Lackawanna-River 4 354 -3.05
Manatee-River 1 17 -26.67
Cocheco-River 1 158 -10.06
Canoochee-River 1 190 -60.94
False-River 1 42,300 +77.14
Trinity-River 19 4,930 -81.55
(Coe)-Atchafalaya-River 1 234,000 -23.89
Chickasawhay-River 3 1,870 -76.48
Alcovy-River 3 204 -42.19
Teton-River 5 339 -13.03
Catawba-River 3 5,000 -32.3
Ware-River 3 622 +46.24
Hackensack-River 3 79 -16.47
Cohocton-River 2 342 -26.88
Little-Wabash-River 3 613 -90.94
Ramapo-River 4 343 +9.45
Babocomari-River 1 0 -65.48
Alabama-River 2 15,300 -73.71
Lynches-River 2 2,210 +10.63
Olentangy-River 3 217 -62.76
Goose-River 2 43 +1.23
Pasquotank-River 1 230 +34.33
Nacimiento-River 2 59 +4.81
Tallahatchie-River 1 6,060 -40.86
Middle-Oconee-River 2 413 -34.7
Mongaup-River 2 147 -69.13
Pedernales-River 2 22 -50.53
Little-Patuxent-River 2 87 -30.63
Penobscot-River 1 11,400 -40.16
Taylor-River 3 160 -23.54
Edisto-River 1 3,680 +29.57
Suncook-River 1 547 -13.38
Little-Blue-River 3 137 -36.87
W.F.-River 1 95 -77.5
South-Pacolet-River 1 97 -12.77
Loxahatchee-River 1 74 -35.29
Niobrara-River 3 20,600 +165.24
Grand-River 11 0 -97.84
Entiat-River 2 209 +22.34
Belle-Fourche-River 2 63 -63.82
Shade-River 1 88 -78.38
Elizabeth-River 1 16 -5.58
Poultney-River 1 209 -27.37
Winnicut-River 1 15 -21.88
Potomac-River 5 7,420 -51.85
Meduxnekeag-River 1 660 +0.38
Skagit-River 4 20,500 +15.49
Duwamish-River 1 2,460 +14.31
Reedy-River 2 192 -17.71
Linville-River 1 115 -38.47
Rock-River 10 6,400 -25.05
Pedlar-River 1 38 -29.56
Skokie-River 2 11 -8.71
Buckhannon-River 2 189 -79.56
Yellowstone-River 9 6,230 -19.56
Sultan-River 2 1,530 +13.22
North-Umpqua-River 2 3,030 -67.46
Boardman-River 1 120 -0.83
Santa-Cruz-River 8 48 -29.99
Manistee-River 3 1,890 +9.22
Tickfaw-River 2 180 -38.19
North-Skunk-River 1 130 -88.39
Kiskiminetas-River 1 1,600 -62.23
Little-Wolf-River 1 873 +38.67
Barren-River 1 912 -71.83
Snake-River 27 20,600 -2.43
Ocoee-River 1 1,720 -6.01
Greys-River 1 246 -27.8
Sepulga-River 1 280 -58.82
Genesee-River 4 875 -74.18
Suwannee-River 10 10,700 -1.86
Powell-River 3 569 -77.52
Santiam-River 1 14,300 -5.45
Peace-River 8 333 -48.96
Rahway-River 2 40 -37.89
Lemhi-River 2 238 -12.63
North-Raccoon-River 2 44 -85.89
Mahoning-River 5 544 -52.31
Segreganset-River 1 18 -8.05
Chetco-River 1 2,590 -67.39
Paint-Rock-River 1 207 -87.89
Kankakee-River 6 2,130 -88.5
Mokelumne-River 1 12,900 +82.85
Spring-River 6 1,310 -28.37
Alamo-River 1 732 +15.85
Little-Platte-River 2 12 -87.76
Blanco-River 5 20 -15.22
Little-Powder-River 1 4 -51.12
Aucilla-River 1 1,020 +127.17
Barron-River 1 84 +61.35
Blue-Earth-River 1 234 -62.44
Falling-Water-River 1 44 -87.06
Souhegan-River 2 440 +28.47
Truckee-River 13 334 -26.32
Sipsey-River 1 487 -68.94
Virgin-River 8 132 -13.09
Narraguagus-River 1 287 -76
Tuckasegee-River 3 1,500 -37.66
Spicket-River 2 166 +48.21
Parker-River 1 56 +48.82
Madison-River 6 1,980 +46.31
Lamington-(Black)-River 1 60 -14.53
Clinton-River 4 307 -40.54
Cahaba-River 9 1,190 -60.81
Duchesne-River 4 90 -13.37
French-River 1 446 +73.06
Millstone-River 1 246 -68.98
Altamaha-River 2 13,500 -21.77
North-Fork-River 1 553 -23.64
Satilla-River 2 3,350 +49.22
Cooper-River 1 16 -32.42
Pecos-River 25 3,410 +481.97
Canisteo-River 3 125 -67.16
Wichita-River 3 26 -59.39
Verdigris-River 6 4,920 +70.14
Nissequogue-River 1 40 -15.08
Grand-Calumet-River 1 390 -7.09
Marsh-River 1 0 -98.61
Selway-River 1 1,430 -9.38
Menomonee-River 2 49 -60.73
Concho-River 2 43 +34.72
Cheyenne-River 7 353 +32.46
Hassayampa-River 1 21 -95.82
Willapa-River 1 679 -52.17
Lochsa-River 1 1,120 -7.61
Brazos-River 15 4,970 -41.17
Choctawhatchee-River 5 5,180 -29.21
Colville-River 1 370 +52.35
Boulder-River 2 162 +8.91
Guyandotte-River 2 483 -75.08
Nodaway-River 3 107 -84.43
Pigg-River 1 449 +3.06
Saugus-River 1 34 +22.86
Rapidan-River 2 633 -8.46
Weiser-River 2 337 -75.11
Obed-River 1 167 -82.76
Oconto-River 2 904 +46.87
Weber-River 9 79 +15.8
Little-Blackfoot-River 1 94 +9.46
Cache-River 3 675 -72.82
North-Anna-River 2 343 -34.78
Coal-River 1 612 -70.16
Kootenai-River 5 6,400 -14.65
Williamson-River 2 538 -29.35
Tuolumne-River 6 180 -17.81
Little-Kanawha-River 1 817 -74.93
Portneuf-River 3 404 -4.27
Pocatalico-River 1 206 -64.14
South-Fabius-River 1 54 -44.44
Stanislaus-River 1 192 -54.22
Tallapoosa-River 5 3,820 -55.04
Pilchuck-River 1 492 -29.54
Wading-River 1 115 +12.04
Chicamacomico-River 1 22 +14.12
Tucannon-River 1 215 +17.81
Meadow-River 1 202 -79.55
Titicus-River 1 8 -82.58
Perdido-River 1 453 -18.49
Susquehanna-River 16 34,500 -50.62
Housatonic-River 5 1,510 -21.81
Nolin-River 1 219 -64.29
Embarras-River 3 621 -87.59
Snoqualmie-River 2 4,190 -4.31
Cannonball-River 3 104 +77.78
Caney-River 3 148 -80.82
Chestatee-River 1 338 -29.92
Quinault-River 1 2,930 -39.14
Passumpsic-River 1 791 +13.16
Oostanaula-River 2 2,290 -70.77
Oyster-River 1 12 -19.49
Cuyahoga-River 5 600 -32.98
Fryingpan-River 3 457 +157.18
Tygart-Valley-River 4 785 -81.62
Cranes-Nest-River 1 41 -64.12
Atascosa-River 2 2 -16.84
Dyberry-Creek 1 66 -28.41
Isinglass-River 1 177 +31.89
Ohoopee-River 1 641 -40.66
Carbon-River 1 431 +0.23
Homochitto-River 2 459 -40.43
Lamine-River 1 24 -88.59
Mission-River 1 1 -77.59
Ottauquechee-River 2 202 -34.6
Klickitat-River 3 1,920 +11.46
Pudding-River 2 2,400 -46.91
Sandusky-River 4 383 -81.27
Elkhart-River 1 288 -54.29
Wateree-River 1 3,550 -53.13
Second-Broad-River 1 123 -21.92
Middle-Raccoon-River 2 64 -64.61
Harpeth-River 4 410 -76.17
Little-Withlacoochee-River 2 23 -35.2
Amargosa-River 2 1 -23.56
Little-Nemaha-River 1 83 -37.59
Middle-River 5 4,040 -40.94
Kentucky-River 12 18,600 +171.97
Ashuelot-River 5 729 +34.55
Pine-River 3 507 -29.09
Sand-Hill-River 1 25 -16.91
Rocky-River 5 770 -51.59
Middle-Loup-River 1 564 +0.87
Marys-River 2 619 -59.75
Ottawa-River 3 85 -67.28
Ochlockonee-River 5 2,560 +26.52
Brodhead-Creek 2 532 -0.89
Skykomish-River 1 3,320 +1.88
Moreau-River 3 60 -75.15
Shasta-River 2 148 -13.16
Cimarron-River 12 702 +28.27
Knife-River 4 76 -25.6
Blackfoot-River 7 640 +4.69
Gila-River 12 97 -74.92
Little-Bighorn-River 2 157 -2.18
Scioto-River 10 2,910 -60.94
Kennebec-River 3 9,320 -51.81
Santee-River 2 18,300 +5.48
Iroquois-River 4 272 -89.42
Navasota-River 3 176 +71.59
Aroostook-River 2 4,640 +29.61
Chariton-River 5 293 -76.68
Colorado-River 35 13,100 +3.05
Paria-River 2 16 +30.86
Quinebaug-River 6 2,230 +37.44
Pike-River 2 223 -0.67
Little-Lost-River 2 29 -38.26
Shenango-River 3 382 -71.07
Lampasas-River 3 43 +31.52
North-Loup-River 2 1,230 +10.99
Metolius-River 1 1,550 -2.08
Licking-River 5 1,590 -74.92
Comite-River 1 80 -54.43
Conestoga-River 2 602 -44.3
Mayo-River 1 433 +9.59
Crawfish-River 1 447 -14.45
Youghiogheny-River 7 1,510 -68.14
Chagrin-River 1 280 -31
Skunk-River 1 1,100 -72.31
South-Santiam-River 3 5,430 -10.32
North-Pacolet-River 1 211 -17.83
Maumee-River 5 1,490 -79.78
Swift-River 2 306 -25.64
Ninnescah-River 1 178 -42.95
Lamoille-River 2 678 -12.18
Swimming-River 1 35 -55.23
Chunky-River 1 203 -64.23
Androscoggin-River 4 6,270 -13.6
White-Earth-River 1 5 -13.14
Tensas-River 1 65 -89.73
Strawberry-River 2 92 -25.43
Dead-River 1 1,570 +56.19
Yocona-River 1 110 -70.76
Sabine-River 12 14,700 +8.92
Congaree-River 1 4,390 -56.72
Kansas-River 6 2,120 -44.16
Nueces-River 10 64 -25.08
Delaware-River 10 11,000 -18.84
Little-Missouri-River 4 57 -33.81
Piscataquis-River 3 3,520 +6.34
Allagash-River 1 1,700 +4.72
Sandy-River 4 2,140 -56.52
Arkansas-River 39 90 -20.53
Logan-River 1 97 -4.83
Shark-River 1 8 -64.17
Yuba-River 1 526 -53.94
Wekiva-River 1 223 -4.06
James-River 25 7,020 -25.23
Maple-River 7 175 -43.86
Tombigbee-River 9 8,160 -83.01
Monongahela-River 2 3,750 -75.83
Wynoochee-River 3 1,710 -15.69
Yellow-Bank-River 1 32 -85.65
Econlockhatchee-River 2 92 -44.67
Pequest-River 2 160 -11.66
Satsop-River 1 2,960 -42.9
Shiawassee-River 1 304 -42.77
Poplar-River 2 40 -27.87
Navajo-River 2 24 -26.48
Tobacco-River 1 341 -4.62
Charles-River 4 658 +55.56
Shenandoah-River 1 2,380 -35.85
Sooes-River 1 143 -66.19
Toms-River 1 196 -31.97
Bear-River 12 402 -30.25
Lewis-River 2 10,000 +12.3
Myakka-River 5 60 -39.08
Little-Black-River 1 120 -45.57
Swan-River 2 537 +14.32
Cuyama-River 1 0 -94.87
Shields-River 1 143 -11.18
Blackwater-River 7 842 -35.54
Connecticut-River 10 16,700 -2.29
Black-Warrior-River 2 10,600 -33.51
Green-River 20 4,920 -65.77
Roanoke-(Staunton)-River 2 2,880 -21.26
Skuna-River 1 42 -78.25
Fourche-Lafave-River 2 3,020 +14.15
Siuslaw-River 1 2,400 -63.96
Ichetucknee-River 1 296 -3.27
Salkehatchie-River 1 280 -9.87
Indian-Head-River 1 54 -26.79
Umpqua-River 1 6,060 -75.59
Roseau-River 3 123 -32.04
Chehalis-River 4 6,490 -25.83
Trempealeau-River 2 833 -19.24
Jefferson-River 2 1,130 -19.29
Apishapa-River 1 6 -44.31
Leona-River 1 11 -63.07
Buttahatchee-River 2 611 -69.58
Great-Miami-River 9 1,980 -59.82
Wacissa-River 1 243 -4.33
Little-Muskingum-River 1 148 -66.39
Tilton-River 1 901 -44
Wyaconda-River 1 34 -82.21
Moormans-River 1 65 -36
Driftwood-River 1 471 -73.48
Exeter-River 1 173 +50
Savage-River 1 40 -63.22
Rockcastle-River 1 300 -86.61
Tioga-River 5 908 -25.77
Nooseneck-River 1 15 -42.65
Greenwater-River 1 295 +21.96
Coginchaug-River 1 65 -5.49
Walker-River 4 21 -68.01
Trask-River 1 979 -58.74
Amite-River 3 831 -56.7
Davidson-River 1 125 -35.49
Mahwah-River 1 21 -7.66
Saddle-River 3 100 -5.58
Little-Tennessee-River 2 1,040 -29.68
Pigeon-River 7 848 -63.81
Little-Colorado-River 7 3,660 +385.98
Little-Cedar-River 1 40 -54.75
Powder-River 3 3,040 +85.93
Saugatuck-River 2 97 -15.49
Firehole-River 1 241 -9.93
Grande-Ronde-River 1 1,800 -28.31
Tradewater-River 1 110 -77.49
Milk-River 8 213 +78.39


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The USGS maintains a hierarchical system of hydrologic units broken up into regions, sub-regions, accounting units, and cataloging units.


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