Rivers

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

Rivers Streamgauges Max Discharge (cfs) vs Average (%)
Little-Menomonee-River 2 6 -66.63
Dugdemona-River 1 91 +11.14
Pompton-River 1 200 -18.37
Wapsipinicon-River 4 873 -29.39
Yellow-River 10 398 -48.62
Uncompahgre-River 5 259 -25.88
Ausable-River 1 642 +81.14
Portage-River 1 7 -95.21
Gauley-River 2 408 -55.34
Wolf-River 7 2,730 +72.45
Pithlachascotee-River 3 18 -64.32
Little-Snake-River 3 21 -32.58
Mill-River 2 15 -56.01
Fisher-River 1 95 -31.53
Jones-River 1 7 -39.73
Willamette-River 6 10,600 -40.05
Sucarnoochee-River 1 248 -17.82
Cacapon-River 1 207 -17.27
Ohio-River 4 121,000 +74.8
Missisquoi-River 3 436 +70.65
Methow-River 4 501 -35.62
Cowanesque-River 3 25 -41.19
Waihee-River 1 56 +4.42
Bouquet-River 1 250 +79.01
Nantahala-River 1 167 -6.82
Sweetwater-River 3 27 -75.5
Belle-River 1 40 +90.3
Lake-Fork-River 2 359 +69.79
Poteau-River 3 361 +10.82
Florida-River 2 8 -21.37
Hudson-River 7 10,900 +33.09
Saline-River 9 567 +91.85
Raquette-River 3 882 +43
South-Raccoon-River 1 134 -79.39
Collins-River 1 125 -78.73
Schuylkill-River 6 7,690 +118.84
North-Mayo-River 1 131 +57.91
Yellow-Medicine-River 1 42 -61.95
Whitewater-River 7 515 +35.97
Waimea-River 1 60 +43.37
Ocmulgee-River 4 1,990 +3.65
Etowah-River 6 1,030 -35.39
Coosawhatchie-River 1 73 -53.19
Deep-River 4 958 +137.71
Little-River 36 1,230 +453.75
Chicopee-River 1 277 -37.98
Escanaba-River 1 454 +14.29
Ogeechee-River 3 780 +69.47
Eagle-River 4 184 -52.67
Mount-Hope-River 1 3 -90.19
Eightmile-River 1 2 -84.42
Little-Minnesota-River 1 5 -91.86
Neches-River 6 4,360 +32.75
Milwaukee-River 3 710 +72.03
Black-River 23 6,670 +5.26
Carlls-River 1 15 -21.78
Elwha-River 1 513 -39.11
Piney-River 4 105 -42.17
Duck-River 7 1,070 -21.68
Piedra-River 1 24 -85.48
Dolores-River 7 126 -38.93
Norwalk-River 1 7 -63.09
Vermilion-River 7 1,360 -19.15
Clackamas-River 3 900 -2.47
Rush-River 1 5 -76.57
Tioughnioga-River 1 99 -30.85
Solomon-River 4 2,730 +335.71
Roaring-River 1 26 +9.13
Econfina-River 1 276 +23.76
Enoree-River 3 292 -24.42
Mattole-River 2 33 -31.92
Wenatchee-River 3 1,210 -22.91
Patuxent-River 3 778 +110.33
Macatawa-River 1 3 -55.17
Raccoon-River 4 369 -36.99
Baker-River 1 44 -30.71
Nottoway-River 3 2,950 +328.98
Trent-River 1 143 -17
Rippowam-River 1 6 -63.19
Whippany-River 3 108 +5.44
Nooksack-River 3 2,030 +9.58
Upper-River 1 8 -12.17
Shell-Rock-River 1 571 -37.05
Bark-River 2 68 -19.91
Choptank-River 1 630 +258.83
Humptulips-River 1 211 -4.65
South-Umpqua-River 2 131 -12.6
Price-River 1 4 -89.64
Saco-River 2 932 -8.91
Flathead-River 4 7,640 -2.45
Tualatin-River 2 214 -5.45
Raritan-River 2 1,490 +0.73
Pacolet-River 2 1,140 +167.05
Chikaskia-River 1 61 -38.87
Namekagon-River 1 119 -11.34
Passaic-River 4 820 +7.05
South-River 8 231 +42.3
Tolt-River 1 156 -6.27
Similkameen-River 1 980 -6.26
Little-Wood-River 2 186 -11.29
Kinnickinnic-River 2 104 -9.91
Pamunkey-River 1 4,240 +460.76
Boyer-River 1 267 -49.27
Tarkio-River 1 152 +18.88
Navarro-River 1 1 -89.19
Eleven-Point-River 1 927 +7.39
Patapsco-River 1 80 -55.04
Little-Chazy-River 1 23 +92.08
Crooked-River 3 1,260 +0.71
Beaverhead-River 3 699 +2.64
North-River 7 1,680 +217.51
Illinois-River 12 10,200 -20.47
Lostmans-River 1 3,260 -67.44
Trap-Rock-River 1 22 +31.07
Sopchoppy-River 1 6 -97.44
Mousam-River 1 34 -34.61
Soldier-River 1 165 -25.38
Little-Sandy-River 2 64 -7
Pahsimeroi-River 1 130 -18.69
Falling-River 1 78 +33.17
Tomoka-River 1 93 +87.85
Little-Fork-River 1 175 -61.18
Pawtuxet-River 1 39 -80.62
Bullpasture-River 1 99 +44.39
Tahquamenon-River 1 396 -17.38
Navidad-River 2 14 -7.3
Palouse-River 2 43 -9.4
Gunnison-River 4 899 -49.5
Upper-Iowa-River 3 557 -11.07
Cranberry-River 1 53 -47.27
Saxtons-River 1 16 -54.53
Salamonie-River 2 14 -62.3
Iron-River 1 89 +50.86
Deadwood-River 1 897 +14.5
Encampment-River 2 30 -40.07
Pawcatuck-River 2 58 -66
Nottely-River 1 133 +3.68
Forest-River 2 95 +73.98
Kawishiwi-River 1 42 -78.53
Newaukum-River 1 71 +34.51
Yantic-River 1 8 -81.67
Clam-River 1 77 -13.87
Pemigewasset-River 2 329 -27.89
Apalachicola-River 3 13,900 -21.53
Wakulla-River 1 1,010 +32.81
Sudbury-River 1 13 -83.77
Waupaca-River 1 431 +34.23
Hazel-River 1 252 +69.97
Antoine-River 1 2 -85.44
Colo-River 1 387 -76.28
Broad-River 8 6,920 +41.78
Ellis-River 1 67 +5.44
Hubbard-River 1 1 -87.11
Angelina-River 1 80 -24.47
Osage-River 2 22,500 -13.09
Little-Muskegon-River 1 203 -1.03
Jarbidge-River 1 8 -32.86
Platte-River 13 5,780 +8.91
Quinsigamond-River 1 4 -80.61
Rockfish-River 1 87 +30
Caloosahatchee-River 1 1,070 -74.36
Kalamazoo-River 4 1,600 +5.17
Napa-River 2 0 -98.33
Mattawamkeag-River 1 205 -79.55
Sturgeon-River 4 214 +16.37
Wells-River 1 48 -13.21
Fivemile-River 1 0 +58.06
Ventura-River 1 6 -16.03
West-River 1 85 -4.2
Long-Prairie-River 1 118 -56.21
Beaver-River 6 1,040 -44.04
Cartecay-River 1 237 -27.6
Little-Satilla-River 1 4 -98.49
Peconic-River 1 14 -26.1
Kewaunee-River 1 30 -15.55
Roaring-Fork-River 5 543 -39.92
Wailuku-River 1 35 -78.12
Bearcamp-River 1 21 -31
Chipuxet-River 1 10 -0.41
Sevier-River 5 355 -0.9
Menominee-River 7 3,390 +49.19
Hunt-River 1 5 -66.62
Patoka-River 3 439 +5.33
Warm-Springs-River 1 197 -19.95
Tuckahoe-River 1 27 +19.52
Little-Wekiva-River 1 90 +97.18
Nonewaug-River 1 2 -77.02
Natalbany-River 1 40 +5.3
Auglaize-River 3 143 -60.13
Yalobusha-River 1 4,190 +105.22
Verde-River 6 194 +47.84
Blackstone-River 3 1,000 +29.48
Rooster-River 1 6 +26.42
Judith-River 1 429 +10.03
Tiffin-River 2 52 -15.65
Canadian-River 10 1,210 +52.91
Leaf-River 4 1,430 -18.36
Assabet-River 1 28 -53.41
West-Fork-River 1 815 +41.19
Conecuh-River 4 694 -62.72
Rivanna-River 1 1,280 +175.8
Heart-River 5 66 -57.28
Turtle-River 1 36 +18.83
Naselle-River 1 36 -5.63
Tyger-River 1 403 -22.3
Trout-River 1 43 +12.53
Caddo-River 1 103 +7.84
Embarrass-River 1 292 -30.33
Sauk-River 3 2,360 -19.36
Strong-River 1 76 -36.82
Wabash-River 12 36,200 +152.42
Lavaca-River 2 0 -67.69
Nestucca-River 1 126 +32.67
Kiamichi-River 3 49 -81.37
Sheyenne-River 9 1,110 +67.44
Winnebago-River 1 74 -67.03
Maumelle-River 2 3 -70.1
Meramec-River 5 2,200 +28.26
Whetstone-River 1 15 -73.11
Kettle-River 3 767 -13.26
Casselman-River 2 64 -75.15
Cohansey-River 1 143 +159.91
Missouri-River 25 139,000 +20.64
Ontonagon-River 1 761 +32.86
Baraboo-River 1 384 -11.79
Cucharas-River 1 0 -99.16
Muscatatuck-River 1 36 +39
Oswegatchie-River 2 429 -35.82
Michigamme-River 1 939 +84.36
Reddies-River 1 179 +36.46
Kishwaukee-River 2 392 -19.34
Columbia-River 4 155,000 -44.48
Leon-River 5 39 +63.02
Wanaque-River 2 27 -6.95
Arikaree-River 1 5 +82.73
Escambia-River 2 2,060 -44.51
Merrimack-River 3 1,830 -35.48
Puyallup-River 4 1,600 -21.99
Seboeis-River 1 11 -88.01
Pocomoke-River 1 54 +13.22
Chassahowitzka-River 1 102 +14.58
Dismal-River 1 253 +9.47
Trout-Creek 1 84 +304.15
Little-Delaware-River 1 139 +180.69
Herring-River 1 4 -42.08
Queets-River 1 793 -4.23
Sprague-River 1 161 +2.11
Concord-River 1 85 -54
Lookout-Creek 1 16 +21.93
Pease-River 1 17 -20.99
Raging-River 1 16 +18.39
Meherrin-River 2 874 +334.13
Upper-Babocomari-River 1 0 -96.23
Tippecanoe-River 6 476 -38.27
Wintering-River 1 46 +78.39
Alapaha-River 3 357 -41.1
Cossatot-River 1 47 -22.19
Savannah-River 6 112,000 +3.04
Deschutes-River 5 4,260 -5.05
Cedar-River 16 3,570 -17.55
Nolan-River 1 4 +49.82
Klamath-River 6 2,570 -16.66
Appomattox-River 3 2,750 +437.81
Mimbres-River 1 3 -36.29
Wood-River 3 350 -2.51
Boiling-River 1 22 +2.2
Nashua-River 1 141 -49.69
Guest-River 1 67 -32.3
Lumber-River 3 1,540 +156.81
Magnolia-River 1 15 -43.02
Little-Shenango-River 1 26 -58.97
Fraser-River 3 44 -46.97
Rappahannock-River 2 2,070 +17.57
Lamprey-River 1 10 -91.34
Conasauga-River 2 438 +5.04
Link-River 1 931 +5.52
Weekeepeemee-River 1 5 -59.93
Bogue-Chitto-River 1 862 -9.36
Malad-River 1 196 +21.57
Maries-River 1 68 -98.22
South-Grand-River 2 172 -85.97
Conemaugh-River 3 543 -18.92
Marias-River 3 728 -38.21
Fall-River 3 22 -7.54
Tomorrow-River 1 34 +21.69
Cispus-River 1 494 -18.17
Rainbow-River 1 641 -9.14
Agua-Fria-River 3 1 +47.87
Umatilla-River 3 148 +49.89
Yockanookany-River 2 67 -0.19
Blanchard-River 6 63 -1.99
Potlatch-River 1 6 -25.56
Seneca-River 1 507 -56.71
Nehalem-River 2 122 -12.89
Hanalei-River 1 128 -48.5
Clark-Fork-River 1 9,630 -0.61
Chenango-River 3 509 -24.54
Yampa-River 7 138 -57.77
Swannanoa-River 1 393 +87.13
Wisconsin-River 6 8,190 +8.73
Noxubee-River 2 185 +4.58
Sheboygan-River 1 255 +21.54
Muscoot-River 2 15 -12.65
Yellow-Creek 1 0 -76.12
Nemadji-River 1 70 -81.8
Mancos-River 1 0 -99.89
Pearl-River 8 3,110 -1.2
Styx-River 1 154 -47.91
Queen-River 1 8 -45.58
Shoal-River 2 509 -26.04
Salmon-River 8 5,720 -0.58
Coosawattee-River 3 734 -42.11
Boeuf-River 1 8 -6.14
Peshtigo-River 3 1,040 +42.44
Calawah-River 1 101 +6.06
Presumpscot-River 1 942 +10.56
Maury-River 2 369 +52.27
Middle-Saluda-River 1 74 -62.94
Rogue-River 10 4,350 +23.06
Thief-River 1 35 -86.17
Current-River 3 2,660 -15.23
Sulphur-River 3 652 -78.77
Pequannock-River 2 55 -15.58
Siletz-River 1 136 +20.21
Tuscarawas-River 4 745 -27.21
Paint-River 1 268 +0.29
Anclote-River 2 34 -62.69
Pend-Oreille-River 2 13,400 -6.27
Flatrock-River 2 229 +76.75
Sacramento-River 12 56,900 -24.59
South-Saluda-River 1 88 +75.92
Snohomish-River 1 2,550 -11.87
Escalante-River 1 1 -77.22
Conejos-River 2 21 -83.09
Skokomish-River 1 259 -12
Wild-River 1 53 -4.95
Flambeau-River 1 1,950 +19.48
Little-Schuylkill-River 1 147 +100.08
Apple-River 1 115 -44.81
Ortega-River 1 322 +143.75
Alafia-River 1 244 -59.27
Clarion-River 4 350 -22.66
Guadalupe-River 18 578 +13.63
Cashie-River 1 55 -52.06
Pomperaug-River 1 15 -67.51
Little-Pigeon-River 1 321 +5.07
Little-Manatee-River 2 40 -85.31
Little-Washita-River 3 22 +172.73
Fremont-River 1 49 -15.75
Otter-Tail-River 2 796 -4.83
East-Verde-River 1 6 -23.49
English-River 1 45 -46.73
Gasconade-River 3 1,330 -87.76
Alsea-River 1 125 +2.13
Aransas-River 1 5 +58.82
Prairie-River 3 133 +16.51
Second-River 1 10 -0.21
Shepaug-River 1 10 -51.68
Jump-River 1 106 -84.94
Thornapple-River 1 178 -20.93
Saluda-River 6 1,360 -17.95
South-Anna-River 1 1,270 +482.06
Independence-River 1 52 -12.74
Ponaganset-River 1 0 -98.31
Diamond-River 1 72 -30.66
Shetucket-River 2 87 -86.66
Pocono-Creek 1 146 +96.47
Emory-River 1 514 +185.94
Redwood-River 2 145 -14.23
Gallinas-River 2 3 -90.13
Sisquoc-River 2 1 +21.82
Vermillion-River 2 140 -40.71
Kanawha-River 2 5,810 -1.53
Tongue-River 7 444 +5.35
Purgatoire-River 7 63 -49.77
North-Platte-River 4 1,990 -22.47
Animas-River 9 41 -58.94
Neuse-River 5 7,600 +265.1
Ammonoosuc-River 1 78 -3.67
Payette-River 4 3,310 -3.28
Allegheny-River 10 6,100 +5.17
Chickahominy-River 1 3,740 +585.21
Michigan-River 2 11 -70.74
White-Salmon-River 1 536 -28.78
Calcasieu-River 3 747 +18.63
Lamar-River 1 392 +2.62
Hillsborough-River 5 346 -45.93
Toutle-River 1 501 -6.97
Bighorn-River 4 2,560 -17.37
Manitowoc-River 1 287 +13.4
Owyhee-River 4 206 +0.33
Nisqually-River 4 944 +3.41
Fenholloway-River 2 187 -20.12
Nolichucky-River 3 2,380 +37.52
Tittabawassee-River 1 698 +1.34
Mississinewa-River 1 118 +10.86
Cass-River 1 110 -43.42
Ecorse-River 1 1 -30.19
Little-Spokane-River 1 150 +10.03
Straight-River 2 142 -25.96
Ocklawaha-River 5 1,190 -13.11
Falls-River 4 675 -16.97
Naugatuck-River 2 83 -67.28
Fowl-River 1 23 -23.1
East-River 3 133 -42.72
Halls-River 1 166 -22.97
Piceance-Creek 1 1 -91.16
Humboldt-River 8 627 +85.85
Hood-River 1 201 -40.75
Stehekin-River 1 1,000 -28.86
North-Meherrin-River 1 21 +92.56
Maquoketa-River 2 929 -49.27
Millers-River 2 77 -71.21
Wainiha-River 1 80 -52.34
Little-Sioux-River 3 779 -41.45
Oconee-River 6 1,250 -23.88
Neshanic-River 1 121 +341.77
Otselic-River 1 38 -37.92
Quashnet-River 1 16 -12.15
Neosho-River 8 2,570 -55.82
Bruneau-River 2 65 -44.72
Tenmile-River 1 30 -67.01
South-Kawishiwi-River 1 164 -48.45
Contoocook-River 3 133 -43.71
Chippewa-River 7 7,330 +9.42
Okanogan-River 3 2,730 +27.04
Kings-River 1 46 -60.06
Uinta-River 2 109 -34.62
Salem-River 1 2,380 +702.94
Kaskaskia-River 8 4,240 +64.51
Pond-River 1 31 -72.37
Quaboag-River 1 24 -61.76
Back-River 1 284 -85.19
Yakima-River 4 4,100 +1.46
Lower-Atchafalaya-River 1 86,800 -13.44
Wilson-River 1 115 +31.46
Hockanum-River 1 60 -55.5
Castor-River 1 275 -56.43
Wakarusa-River 2 1,130 +223.24
Loosahatchie-River 1 124 -17.22
Whiterocks-River 1 100 -12.6
Mullica-River 1 58 -5.3
Unadilla-River 1 289 +19.48
Gibbon-River 1 111 -3.2
Jackson-River 3 364 +8.48
Mukwonago-River 1 49 -15.01
Mermentau-River 1 999 -41.6
White-River 37 292 -21
Valley-River 1 104 -13.81
Williams-River 2 105 -30.87
Carson-River 5 826 +11.14
Ducktrap-River 1 0 -88.81
Wallkill-River 1 803 -6.89
Redwater-River 2 112 -22.25
Musselshell-River 6 214 -2.23
Ogden-River 2 125 -13.79
Clearwater-River 7 12,600 -6.82
Walla-Walla-River 1 11 -57.43
Bois-Brule-River 1 169 +4.39
Mora-River 2 10 -63.03
Tallulah-River 2 164 +2.35
Washita-River 8 725 +182.21
Floyd-River 2 122 -57.95
Little-Cottonwood-River 1 64 +14.51
Willow-River 1 205 +30.1
Chipola-River 2 513 -54.89
Shawsheen-River 2 8 -47.48
Aberjona-River 1 2 -73.59
Merced-River 2 28 -81.06
West-Okaw-River 1 1 -77.01
Quinapoxet-River 1 8 -33.45
Neversink-River 4 565 +29.62
Ararat-River 1 296 -17.47
Pecatonica-River 4 2,070 -15.23
Paskamanset-River 1 1 -88.27
Nipmuc-River 1 1 -96.18
Juniata-River 4 950 -58.26
Mohawk-River 4 927 -58.47
Walloomsac-River 1 74 -38
Huron-River 4 236 -12.45
First-Broad-River 1 92 +49.73
Russian-River 10 162 -28.16
Dowagiac-River 1 206 -5.79
Chemung-River 3 245 -52.81
Mechums-River 1 72 +8.56
Pootatuck-River 1 8 -63.6
Lower-River 1 59 -6.7
Sabinal-River 3 1 -88.28
Niangua-River 2 391 -58.61
Lehigh-River 6 6,940 +78.64
Mashel-River 1 18 +11.25
Pascagoula-River 2 2,620 -0.52
Oconaluftee-River 1 470 -1.63
Ford-River 1 196 +13.58
Hyco-River 1 13 -70.06
Minnesota-River 7 4,820 -11.32
South-Mayo-River 1 93 +18.93
Muskingum-River 4 2,320 -26
Huerfano-River 3 7 -77.15
Bourbeuse-River 2 364 -63.42
Turkey-River 4 1,040 -6.31
South-Yamhill-River 1 64 +58.23
Waccamaw-River 3 4,260 +63.4
Spoon-River 2 219 -4.65
Little-Calumet-River 3 53 -12.55
Pere-Marquette-River 1 587 +7.6
Cape-Fear-River 1 4,660 +119.97
Mojave-River 1 2 -20.68
Skookumchuck-River 3 89 -15.29
Llano-River 3 54 +18.39
Robinson-River 1 370 +103.73
Manistique-River 1 891 +2.99
Buffalo-River 8 635 +7.22
Boone-River 1 51 -74.38
Ouachita-River 3 5,360 +51.79
Indian-River 2 146 -35.93
Westfield-River 2 163 -47.12
Ocheyedan-River 1 55 -49.36
Presque-Isle-River 1 103 +28
Yahara-River 6 447 +2.21
Quinnipiac-River 2 51 -72.69
Chelan-River 1 75 -79.22
South-Yadkin-River 1 1,180 +279.87
Little-Androscoggin-River 1 12 -57.93
Laramie-River 3 66 +37.54
Jordan-River 2 176 +4.62
Rifle-River 1 194 +12.42
Oneida-River 1 371 -50.37
Nezinscot-River 1 39 -50.8
Taunton-River 1 50 -51.94
Chiwawa-River 1 269 -18.32
Maurice-River 1 408 +141.65
Loup-River 2 1,920 +22.75
Mazon-River 1 14 -52.32
Nanticoke-River 1 34 -48.62
Lackawaxen-River 3 569 -5.48
Moose-River 1 14 -57.76
Manasquan-River 2 121 +75.77
Gros-Ventre-River 2 331 -15.44
Flat-River 2 14 -57.49
Hocking-River 2 175 -18.98
Usquepaug-River 1 14 -43.31
Little-Auglaize-River 1 68 -7.37
Biloxi-River 1 23 -81.45
Clyde-River 1 117 +3.19
Jemez-River 1 10 -46.25
Bill-Williams-River 2 13 +47.39
Squannacook-River 1 12 -53.63
Boise-River 5 740 -7.6
Piscataquog-River 1 17 -82.35
Little-Wind-River 1 46 -79.28
Woonasquatucket-River 1 6 -59.61
Greenbrier-River 4 733 +36.87
Cheat-River 2 589 -49.83
Sangamon-River 6 1,780 +77.37
Samish-River 1 39 +10.61
Alamosa-River 3 43 -70.27
Salt-River 11 1,100 -1.21
Winnipesaukee-River 1 263 -34.84
Rabbit-River 1 28 -2.56
Upper-Ammonoosuc-River 1 95 -40.53
Moyie-River 1 132 -8.19
Flint-River 12 3,630 +28.46
Malheur-River 1 50 -23.83
Watonwan-River 1 258 +32.67
Elevenpoint-River 1 1,110 -5.08
Salinas-River 5 641 +16.28
Little-Cottonwood-Creek 1 7 -55.45
Paluxy-River 1 3 -79.93
Elkhorn-River 5 1,010 +6.92
Natchaug-River 1 40 -72.1
Ruby-River 3 360 +5.95
Breitenbush-River 1 131 -17.78
Looking-Glass-River 1 88 +5.65
Blue-River 15 780 +17.65
Mulberry-River 1 1,050 +520.46
Otter-River 1 10 -63.95
Little-Cahaba-River 3 53 -14.24
Twisp-River 1 87 -27.16
Scott-River 1 10 -69.66
Cowpasture-River 1 424 +100.1
Palatlakaha-River 2 8 -85.51
Cumberland-River 3 11,900 +4.67
Nishnabotna-River 1 851 -28.41
Deerfield-River 2 272 -66.6
Cheoah-River 1 95 -12.81
Minam-River 1 201 +19.84
Glover-River 1 0 -99.74
Imperial-River 1 44 -80.8
Spirit-River 1 14 -87
Coosa-River 2 3,130 +9.74
Musconetcong-River 2 282 +25.02
Wind-River 4 515 -22.77
Pawnee-River 2 9 -46.2
Bush-River 1 36 +92.06
Sinsinawa-River 1 47 +73.25
Withlacoochee-River 17 1,040 -2.16
Molalla-River 1 99 +29.25
Cuivre-River 1 87 -78.17
Croton-River 1 129 -58.17
Walnut-River 1 194 -90.86
Brule-River 2 694 +17.94
Chewuch-River 1 90 -39.99
Laplatte-River 1 4 -50.24
Mississippi-River 20 552,000 -8.21
Kickapoo-River 2 745 +14.01
Kokosing-River 1 39 -45.78
Stonycreek-River 1 87 -68.22
North-Nashua-River 2 29 -60.07
Dungeness-River 1 200 -28.77
Yadkin-River 5 7,770 +162.89
Ipswich-River 2 11 -72.67
Petit-Jean-River 2 143 -51.32
Vermejo-River 1 4 -96.89
Lemonweir-River 1 184 -34.85
Sequatchie-River 1 174 +0.71
Frio-River 3 12 -64.93
Saranac-River 1 826 +39.41
Little-Tallahatchie-River 1 55 -25.11
Languille-River 2 297 -34.69
Still-River 2 35 -47.62
Pound-River 1 173 +81.11
Crow-River 1 355 -71.42
Applegate-River 3 148 -51.93
Clinch-River 4 1,320 +70.59
Lost-River 1 8 -34
Pajaro-River 1 9 +0.91
South-Skunk-River 4 225 -39.21
Muskegon-River 2 1,280 -1.87
Clarks-River 2 18 -47.37
Sleepers-River 1 9 -37.04
Swiftwater-Creek 1 6 -69.33
Mackinaw-River 2 270 +50.09
Tangipahoa-River 2 814 +28.59
Republican-River 11 6,580 +393.16
Provo-River 5 267 -26.65
Middle-Fork-River 1 63 -22.86
Cascade-River 1 888 -14.47
Winooski-River 2 515 -25.3
Little-Ausable-River 1 45 +92.74
Rapid-River 1 19 -86.69
Marmaton-River 3 22 -99.23
Cottonwood-River 3 443 -9.17
Hatchie-River 3 951 +13.2
Sabana-River 1 0 -99.95
Waccasassa-River 1 172 -71.47
Santa-Clara-River 3 7 +51.02
Park-River 1 16 -76.62
North-Santiam-River 3 1,170 -0.47
Silver-River 2 621 -13.39
Yaak-River 1 193 -0.46
Pembina-River 2 155 -52.79
Bitterroot-River 3 895 +5.79
West-Nishnabotna-River 2 481 -33.07
Slate-River 1 106 -1.22
Gallatin-River 2 599 -8.8
Wild-Rice-River 4 529 +46.81
Volga-River 1 190 -32.86
Chadakoin-River 1 92 -23.03
Banister-River 1 770 +96.93
Hawlings-River 1 13 -12.42
Monocacy-River 3 853 +48.52
Smith-River 12 635 +25.22
Root-River 6 915 -11.85
Carmel-River 2 8 -16.28
Cowlitz-River 4 3,270 -25.23
Little-Muddy-River 1 6 -55.28
Duckabush-River 1 107 -40.94
Cosumnes-River 1 19 -50.48
Moshassuck-River 1 6 -64.77
Spokane-River 4 1,530 +19.72
Homosassa-River 1 893 +0.71
Willimantic-River 1 31 -78.79
Sevenmile-River 1 0 -94.12
Mills-River 1 281 +36.35
Sheepscot-River 1 18 -65.04
Fish-River 2 117 -83.36
Cannon-River 1 973 +14.1
Little-Tallapoosa-River 3 183 +19.8
Bluestone-River 2 224 +63.83
East-Nishnabotna-River 2 250 -59.89
Farmington-River 2 303 -51.9
Hardware-River 1 65 -25.03
Mattaponi-River 2 1,650 +384.4
French-Broad-River 7 4,050 +47.15
Branch-River 1 14 -75.78
Hoosic-River 3 275 -32.74
Gardner-River 1 142 -12.46
Carrabassett-River 1 171 -17.53
Little-Miami-River 2 225 -18.74
Dearborn-River 1 75 +16.15
Lower-Little-River 1 36 +23.3
Oswego-River 2 1,300 -44.75
Mettawee-River 1 50 -37.76
Priest-River 2 1,380 +42.05
Crystal-River 1 92 -54.79
Chattahoochee-River 13 4,230 +102.8
Toccoa-River 1 451 -11.96
Little-Yadkin-River 1 23 +45.26
Neponset-River 3 32 -75.55
Edwards-River 2 76 -15.71
Hoko-River 1 27 +12.78
Popple-River 1 73 +20.72
Finley-Creek 1 31 -94.16
Coldwater-River 1 65 +8.09
Cross-River 2 13 -30.21
Christina-River 1 104 +384.62
South-Platte-River 17 95 -74.15
Iowa-River 8 5,020 -12.86
Calfpasture-River 1 86 +99.26
Sacandaga-River 2 380 +22.28
Stillwater-River 4 788 -13.78
Little-Salmon-River 2 269 +2.28
North-Canadian-River 11 871 +160.52
Galien-River 1 30 -2.12
Watauga-River 2 575 +2.13
Long-Pine-Creek 1 262 +21.99
N.Umpqua-River 4 333 +83.19
Little-Bear-River 1 17 -40.41
Outlet-River 1 99 -2.16
Chattooga-River 3 868 +31.83
Pack-River 1 48 +43.81
North-Oconee-River 1 146 +5.54
Medina-River 3 62 -87.1
Steinhatchee-River 1 142 -77.36
Crow-Wing-River 2 1,940 +6.99
Luckiamute-River 1 47 +10.77
Muddy-River 2 38 +4.66
Warner-River 1 14 -73.96
Comal-River 3 256 +21.62
Roanoke-River 6 2,500 -46.09
Grant-River 1 308 +23.69
Basswood-River 1 610 -55.02
Huasna-River 1 1 -20.99
American-River 2 2,530 -24.45
Middle-Tyger-River 2 95 +124.34
Mckenzie-River 8 2,430 +1.41
Threemile-River 1 9 -60.91
Raft-River 1 1 -65.37
Escatawpa-River 1 272 -40.44
Johns-River 1 410 -9.54
Shoshone-River 1 555 -35.47
Sugar-River 2 448 -3.79
Noyo-River 1 2 -75.29
Souris-River 6 94 -90.81
Grass-River 1 352 +0.48
Tellico-River 1 141 -13.14
Rockaway-River 1 144 +45.78
Apalachee-River 2 70 -15.37
Little-Juniata-River 1 85 -56.76
Thompson-River 3 250 -36.08
Lackawanna-River 4 264 -43.89
Manatee-River 1 11 -94.95
Cocheco-River 1 6 -80.97
Canoochee-River 1 9 -95.36
False-River 1 30,400 -21.35
Trinity-River 19 1,630 +12.85
(Coe)-Atchafalaya-River 1 146,000 -11.62
Chickasawhay-River 3 991 +5.4
Alcovy-River 3 72 -42.29
Teton-River 5 697 -12.35
Catawba-River 3 8,200 +193.87
Ware-River 3 44 -61.4
Hackensack-River 3 39 -36.72
Cohocton-River 2 59 -53.73
Little-Wabash-River 3 6,780 +380.36
Ramapo-River 4 111 -17.74
Babocomari-River 1 0 -53.85
Alabama-River 2 6,890 -50.82
Lynches-River 2 1,470 +222.76
Olentangy-River 3 149 +27.13
Goose-River 2 138 -31.42
Pasquotank-River 1 552 +181.32
Nacimiento-River 2 395 -4.27
Tallahatchie-River 1 7,510 +57.73
Middle-Oconee-River 2 221 +11.93
Mongaup-River 2 774 +223.17
Pedernales-River 2 6 -86.08
Little-Patuxent-River 2 85 -11.78
Penobscot-River 1 4,480 -26.15
Taylor-River 3 274 -33.5
Edisto-River 1 985 -43.3
Suncook-River 1 8 -89.81
Little-Blue-River 3 380 -5.68
W.F.-River 1 87 -41.94
South-Pacolet-River 1 202 +133.36
Loxahatchee-River 1 285 +74.92
Niobrara-River 3 2,750 +31.51
Grand-River 11 17 -50.73
Entiat-River 2 168 -36.39
Belle-Fourche-River 2 198 -33.92
Shade-River 1 5 -79
Elizabeth-River 1 18 -3.35
Poultney-River 1 42 -66.39
Winnicut-River 1 1 -92.32
Potomac-River 5 8,910 +24.25
Meduxnekeag-River 1 8 -87.35
Skagit-River 4 11,800 -13.08
Duwamish-River 1 728 -13.56
Reedy-River 2 150 -42.92
Linville-River 1 362 +127.4
Rock-River 10 5,730 -19.87
Pedlar-River 1 19 +20.13
Skokie-River 2 3 -91.56
Buckhannon-River 2 173 -33.14
Yellowstone-River 9 7,320 -20.65
Sultan-River 2 341 -16.35
North-Umpqua-River 2 863 -12.32
Boardman-River 1 103 -1.22
Santa-Cruz-River 8 46 -23.95
Manistee-River 3 1,590 +4.07
Tickfaw-River 2 140 -8.69
North-Skunk-River 1 60 -54.88
Kiskiminetas-River 1 661 -27.5
Little-Wolf-River 1 873 +38.67
Barren-River 1 1,830 +35.94
Snake-River 27 20,800 +10.31
Ocoee-River 1 1,690 +56.48
Greys-River 1 513 +0.79
Sepulga-River 1 62 -68.64
Genesee-River 4 278 -58.44
Suwannee-River 10 10,200 +19.58
Powell-River 3 668 +28.21
Santiam-River 1 1,660 +1.15
Peace-River 8 1,590 -29.12
Rahway-River 2 176 +40.96
Lemhi-River 2 84 -33.05
North-Raccoon-River 2 102 -75.42
Mahoning-River 5 536 -28.89
Segreganset-River 1 0 -97.46
Chetco-River 1 138 +3.76
Paint-Rock-River 1 52 -17
Kankakee-River 6 1,320 -19.56
Mokelumne-River 1 9,800 -22.22
Spring-River 6 1,860 -30.12
Alamo-River 1 789 +14.4
Little-Platte-River 2 13 -32.19
Blanco-River 5 37 -29.96
Little-Powder-River 1 2 -62.34
Aucilla-River 1 161 -55.02
Barron-River 1 102 -6.42
Blue-Earth-River 1 529 -11.93
Falling-Water-River 1 26 -87.07
Souhegan-River 2 32 -48.76
Truckee-River 13 583 +9.65
Sipsey-River 1 187 -4.32
Virgin-River 8 64 -39.96
Narraguagus-River 1 52 -59.59
Tuckasegee-River 3 1,800 +31.04
Spicket-River 2 8 -40.34
Parker-River 1 3 -16.01
Madison-River 6 1,870 +16.79
Lamington-(Black)-River 1 144 +135.53
Clinton-River 4 224 -22.07
Cahaba-River 9 706 -20.66
Duchesne-River 4 70 -54.29
French-River 1 14 -74.59
Millstone-River 1 379 +2.33
Altamaha-River 2 3,480 -71.34
North-Fork-River 1 779 -62.72
Satilla-River 2 275 -84.42
Cooper-River 1 76 +37.16
Pecos-River 25 140 -20.15
Canisteo-River 3 43 -51.52
Wichita-River 3 146 +97.97
Verdigris-River 6 1,230 -59.5
Grand-Calumet-River 1 760 +19.31
Marsh-River 1 3 -43.76
Selway-River 1 1,190 +20.53
Menomonee-River 2 35 -51.52
Concho-River 2 14 +39.03
Cheyenne-River 7 322 -62.17
Hassayampa-River 1 21 -95.82
Willapa-River 1 41 +8.12
Lochsa-River 1 990 +33.74
Brazos-River 15 1,280 -52.91
Choctawhatchee-River 5 2,720 -41.41
Colville-River 1 183 +36.95
Boulder-River 2 229 -17.99
Guyandotte-River 2 254 -30.98
Nodaway-River 3 227 -27.27
Pigg-River 1 393 +74.5
Saugus-River 1 2 -92.28
Rapidan-River 2 1,020 +153.38
Weiser-River 2 233 -7.87
Obed-River 1 342 +224.29
Oconto-River 2 1,150 +64.78
Weber-River 9 559 +17.77
Little-Blackfoot-River 1 138 +116.91
Cache-River 3 584 -19.27
North-Anna-River 2 1,040 +320.58
Coal-River 1 315 -17.87
Kootenai-River 5 10,900 +17.02
Williamson-River 2 480 -3.83
Tuolumne-River 6 122 -85.24
Little-Kanawha-River 1 394 -0.92
Portneuf-River 3 365 +48.85
Pocatalico-River 1 22 +5.31
South-Fabius-River 1 86 -29.32
Stanislaus-River 1 200 -77.86
Tallapoosa-River 5 1,600 +1.06
Pilchuck-River 1 87 +18.95
Wading-River 1 2 -82.71
Chicamacomico-River 1 16 +119.55
Tucannon-River 1 66 +9.67
Meadow-River 1 61 -58.2
Titicus-River 1 10 -29.36
Perdido-River 1 254 -45.87
Susquehanna-River 16 46,100 +152.91
Housatonic-River 5 493 -26.84
Nolin-River 1 176 -10.57
Embarras-River 3 2,230 +337.63
Snoqualmie-River 2 976 +3.57
Cannonball-River 3 27 -38.56
Caney-River 3 369 -59.84
Chestatee-River 1 207 -30.77
Quinault-River 1 573 -31.97
Passumpsic-River 1 157 -53.2
Oostanaula-River 2 1,940 +13.77
Oyster-River 1 1 -87.15
Cuyahoga-River 5 309 -56.06
Fryingpan-River 3 66 -48.04
Tygart-Valley-River 4 2,680 +112.05
Cranes-Nest-River 1 54 -37.34
Atascosa-River 2 2 +10.46
Dyberry-Creek 1 76 -27.1
Isinglass-River 1 3 -86.94
Ohoopee-River 1 56 -84.21
Carbon-River 1 292 -21.59
Homochitto-River 2 294 -83.89
Lamine-River 1 95 -78.02
Mission-River 1 1 -61.94
Ottauquechee-River 2 41 -56.67
Klickitat-River 3 742 -25.75
Pudding-River 2 35 -23.97
Sandusky-River 4 295 -37.71
Elkhart-River 1 555 +61.96
Wateree-River 1 6,070 +85.25
Second-Broad-River 1 99 +7.41
Middle-Raccoon-River 2 87 -60.61
Harpeth-River 4 240 -28.77
Little-Withlacoochee-River 2 17 -94.29
Amargosa-River 2 1 +27.71
Little-Nemaha-River 1 198 +76.08
Middle-River 5 9,380 +46.68
Kentucky-River 12 3,540 -45.45
Ashuelot-River 5 110 -62.54
Pine-River 3 372 +31.81
Sand-Hill-River 1 22 -58.47
Rocky-River 5 1,350 +55.53
Middle-Loup-River 1 517 +5.15
Marys-River 2 20 -11.58
Ottawa-River 3 50 -4.1
Ochlockonee-River 5 404 -76.51
Brodhead-Creek 2 1,070 +117.43
Skykomish-River 1 1,110 -14.87
Moreau-River 3 55 -79.53
Shasta-River 2 19 -40.68
Cimarron-River 12 3,720 +404.47
Knife-River 4 32 -58.51
Blackfoot-River 7 949 +9.6
Gila-River 11 554 +127.84
Little-Bighorn-River 2 101 -23.29
Scioto-River 10 7,460 +343.84
Kennebec-River 3 3,000 -30.21
Santee-River 2 1,780 -71.19
Iroquois-River 4 301 -2.59
Navasota-River 3 20 -57.01
Aroostook-River 2 204 -83.5
Chariton-River 5 52 -87.43
Colorado-River 35 15,700 -3.09
Paria-River 2 3 -73.75
Quinebaug-River 6 100 -81.63
Pike-River 2 224 +38.27
Little-Lost-River 2 44 -25.7
Shenango-River 3 242 -31.96
Lampasas-River 3 15 -34.04
North-Loup-River 2 1,240 -10.46
Metolius-River 1 1,320 -11.48
Licking-River 5 2,210 -14.68
Comite-River 1 47 -67.84
Conestoga-River 2 5,070 +342.07
Mayo-River 1 340 +61.65
Crawfish-River 1 348 +29.05
Youghiogheny-River 7 782 -30.1
Chagrin-River 1 68 -73.33
Skunk-River 1 434 -50.6
South-Santiam-River 3 922 +4.64
North-Pacolet-River 1 418 +144.13
Maumee-River 5 615 -43.31
Swift-River 2 45 -40.19
Ninnescah-River 1 118 -69.52
Lamoille-River 2 616 +12.48
Swimming-River 1 21 -80.76
Chunky-River 1 73 -71
Androscoggin-River 4 2,160 -5.57
White-Earth-River 1 2 -64.63
Tensas-River 1 42 -38.76
Strawberry-River 2 74 -44.41
Dead-River 1 388 -28.62
Yocona-River 1 32 -69.87
Sabine-River 12 7,990 -31.97
Congaree-River 1 4,180 -18.99
Kansas-River 6 27,000 +204.27
Nueces-River 10 119 -6.02
Delaware-River 10 31,800 +157.74
Little-Missouri-River 4 180 -29.15
Piscataquis-River 3 413 -33.91
Allagash-River 1 325 -61.4
Sandy-River 4 447 -0.62
Arkansas-River 39 70 -91.75
Logan-River 1 111 -31.75
Shark-River 1 4 -56.26
Yuba-River 1 1,190 -15.18
Wekiva-River 1 464 +19.01
James-River 25 7,410 +69
Maple-River 7 401 +81.74
Tombigbee-River 9 5,130 -43.37
Monongahela-River 2 3,180 -37.26
Wynoochee-River 3 265 +15.5
Yellow-Bank-River 1 17 -74.28
Econlockhatchee-River 2 735 +31.33
Pequest-River 2 176 +30.67
Satsop-River 1 273 -4.51
Shiawassee-River 1 176 -7.08
Poplar-River 2 36 -24.3
Navajo-River 2 46 -40.54
Tobacco-River 1 233 +0.87
Charles-River 4 31 -80.25
Shenandoah-River 1 1,930 +16.47
Sooes-River 1 18 +35.36
Toms-River 1 152 +1.41
Bear-River 12 1,190 +4.69
Lewis-River 2 1,250 -20.1
Myakka-River 5 82 -87.19
Little-Black-River 1 74 -25.29
Swan-River 2 898 +1.71
Cuyama-River 1 0 -64.81
Shields-River 1 58 -22.63
Blackwater-River 7 4,640 +115.67
Connecticut-River 10 18,000 -2.47
Black-Warrior-River 2 4,860 -2.47
Green-River 20 6,910 +26.6
Roanoke-(Staunton)-River 2 2,350 +49.22
Skuna-River 1 13 -68.11
Fourche-Lafave-River 2 249 +250.26
Siuslaw-River 1 144 -4.91
Ichetucknee-River 1 283 -11.7
Salkehatchie-River 1 106 -49.39
Indian-Head-River 1 3 -67.92
Umpqua-River 1 942 -22.1
Roseau-River 3 229 -7.08
Chehalis-River 4 424 -1.55
Trempealeau-River 2 505 -16.56
Jefferson-River 2 459 -25.42
Apishapa-River 1 5 -88.32
Leona-River 1 9 -37.66
Buttahatchee-River 2 242 -40.03
Great-Miami-River 9 1,450 +31.86
Wacissa-River 1 179 -41.98
Little-Muskingum-River 1 8 -58.74
Tilton-River 1 104 +11.11
Wyaconda-River 1 18 -77.42
Moormans-River 1 308 +206.86
Driftwood-River 1 728 +94.3
Exeter-River 1 2 -86.41
Savage-River 1 7 -80.88
Rockcastle-River 1 89 -90.14
Tioga-River 5 142 -56.65
Nooseneck-River 1 3 -50.7
Greenwater-River 1 60 +7.09
Coginchaug-River 1 2 -84.98
Walker-River 4 32 -64.08
Trask-River 1 130 +23.29
Amite-River 3 783 -36.56
Davidson-River 1 203 +2.51
Mahwah-River 1 4 -41.83
Saddle-River 3 60 -48.46
Little-Tennessee-River 2 1,100 +35.64
Pigeon-River 7 1,030 -6.06
Little-Colorado-River 7 211 -51.49
Little-Cedar-River 1 132 -1.79
Powder-River 3 49 -57.85
Saugatuck-River 2 13 -62.02
Firehole-River 1 241 -11.47
Grande-Ronde-River 1 806 +14.22
Tradewater-River 1 104 -44.19
Milk-River 8 368 -13.25

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

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