USGS river gauges: Pacific Northwest & Northern Rockies
All 142 USGS stream gauges Flowcast tracks, with each gauge's USGS site number, station name, drainage area, live flow and plain-language status.
Updated Oct 27, 9:24 AM PDT · USGS data, provisional
Oregon (39 gauges)
| River | USGS site | USGS station name | Drainage area | Daily record since | Flow now | Status |
|---|---|---|---|---|---|---|
| Alsea River near Tidewater, OR | 14306500 | ALSEA RIVER NEAR TIDEWATER, OR | 334 sq mi | 1939 | 173 cfs | Fishable/Floatable |
| Applegate River near Applegate, OR | 14366000 | APPLEGATE RIVER NEAR APPLEGATE, OR | 483 sq mi | 1938 | 118 cfs | Fishable/Floatable |
| Chetco River near Brookings, OR | 14400000 | CHETCO RIVER NEAR BROOKINGS, OR | 271 sq mi | 1969 | 156 cfs | Fishable/Floatable |
| Clackamas River above Three Lynx Creek, OR | 14209500 | CLACKAMAS RIVER ABOVE THREE LYNX CREEK, OR | 479 sq mi | 1909 | 688 cfs | Fishable/Floatable |
| Clackamas River at Estacada, OR | 14210000 | CLACKAMAS RIVER AT ESTACADA, OR | 671 sq mi | 1908 | 915 cfs | Fishable/Floatable |
| Crooked River below Opal Springs, near Culver, OR | 14087400 | CROOKED RIVER BELOW OPAL SPRINGS, NEAR CULVER, OR | 4,557 sq mi | 1961 | 1,190 cfs | Fishable/Floatable |
| Deschutes River at Moody, near Biggs, OR | 14103000 | DESCHUTES RIVER AT MOODY, NEAR BIGGS, OR | 10,500 sq mi | 1897 | 4,260 cfs | Fishable/Floatable |
| Deschutes River near Madras, OR | 14092500 | DESCHUTES RIVER NEAR MADRAS, OR | 7,820 sq mi | 1923 | 3,910 cfs | Fishable/Floatable |
| Grande Ronde River at Troy, OR | 13333000 | GRANDE RONDE RIVER AT TROY, OR | 3,275 sq mi | 1944 | 694 cfs | Fishable/Floatable |
| Hood River at Tucker Bridge, near Hood River, OR | 14120000 | HOOD RIVER AT TUCKER BRIDGE, NEAR HOOD RIVER, OR | 279 sq mi | 1897 | 382 cfs | Fishable/Floatable |
| Illinois River near Kerby, OR | 14377100 | ILLINOIS RIVER NEAR KERBY, OR | 380 sq mi | 1961 | 44.3 cfs | Fishable/Floatable |
| John Day River at McDonald Ferry, OR | 14048000 | JOHN DAY RIVER AT MCDONALD FERRY, OR | 7,580 sq mi | 1904 | 238 cfs | Fishable/Floatable |
| McKenzie River below Leaburg Dam, near Leaburg, OR | 14163150 | MCKENZIE RIVER BLW LEABURG DAM, NR LEABURG, OR | 1,030 sq mi | 1989 | 2,110 cfs | Fishable/Floatable |
| McKenzie River near Vida, OR | 14162500 | MCKENZIE RIVER NEAR VIDA, OR | 930 sq mi | 1910 | 2,060 cfs | Fishable/Floatable |
| Metolius River near Grandview, OR | 14091500 | METOLIUS RIVER NEAR GRANDVIEW, OR | 316 sq mi | 1912 | 1,200 cfs | Fishable/Floatable |
| Middle Fork Willamette River near Dexter, OR | 14150000 | MIDDLE FORK WILLAMETTE RIVER NEAR DEXTER, OR | 1,001 sq mi | 1946 | 1,270 cfs | Too low |
| Minam River at Minam, OR | 13331500 | MINAM RIVER AT MINAM, OR | 240 sq mi | 1912 | 73.4 cfs | Fishable/Floatable |
| Molalla River near Canby, OR | 14200000 | MOLALLA RIVER NEAR CANBY, OR | 323 sq mi | 1928 | 170 cfs | Fishable/Floatable |
| Nehalem River near Foss, OR | 14301000 | NEHALEM RIVER NEAR FOSS, OR | 667 sq mi | 1939 | 218 cfs | Fishable/Floatable |
| Nestucca River near Beaver, OR | 14303600 | NESTUCCA RIVER NEAR BEAVER, OR | 180 sq mi | 1964 | 456 cfs | Fishable/Floatable |
| North Fork John Day River at Monument, OR | 14046000 | NORTH FORK JOHN DAY RIVER AT MONUMENT, OR | 2,520 sq mi | 1928 | 96.7 cfs | Too low |
| North Santiam River at Niagara, OR | 14181500 | NORTH SANTIAM RIVER AT NIAGARA, OR | 453 sq mi | 1908 | 1,230 cfs | Fishable/Floatable |
| North Umpqua River at Winchester, OR | 14319500 | NORTH UMPQUA RIVER AT WINCHESTER, OR | 1,344 sq mi | 1908 | 872 cfs | Fishable/Floatable |
| Rogue River at Grants Pass, OR | 14361500 | ROGUE RIVER AT GRANTS PASS, OR | 2,459 sq mi | 1939 | 1,180 cfs | Fishable/Floatable |
| Rogue River at Raygold, near Central Point, OR | 14359000 | ROGUE RIVER AT RAYGOLD NEAR CENTRAL POINT, OR | 2,053 sq mi | 1905 | 1,150 cfs | Fishable/Floatable |
| Rogue River near Agness, OR | 14372300 | ROGUE RIVER NEAR AGNESS, OR | 3,939 sq mi | 1960 | 1,510 cfs | Fishable/Floatable |
| Sandy River below Bull Run River, near Bull Run, OR | 14142500 | SANDY RIVER BLW BULL RUN RIVER, NR BULL RUN, OR | 436 sq mi | 1910 | 474 cfs | Fishable/Floatable |
| Sandy River near Marmot, OR | 14137000 | SANDY RIVER NEAR MARMOT, OR | 264 sq mi | 1911 | 362 cfs | Fishable/Floatable |
| Siletz River at Siletz, OR | 14305500 | SILETZ RIVER AT SILETZ, OR | 202 sq mi | 1905 | 512 cfs | Fishable/Floatable |
| Siuslaw River near Mapleton, OR | 14307620 | SIUSLAW RIVER NEAR MAPLETON, OR | 588 sq mi | 1967 | 394 cfs | Fishable/Floatable |
| South Fork Coquille River at Powers, OR | 14325000 | SOUTH FORK COQUILLE RIVER AT POWERS, OR | 169 sq mi | 1916 | 37.9 cfs | Fishable/Floatable |
| South Fork McKenzie River near Rainbow, OR | 14159500 | SOUTH FORK MCKENZIE RIVER NEAR RAINBOW, OR | 208 sq mi | 1947 | 490 cfs | Fishable/Floatable |
| South Santiam River at Waterloo, OR | 14187500 | SOUTH SANTIAM RIVER AT WATERLOO, OR | 640 sq mi | 1905 | 1,310 cfs | Fishable/Floatable |
| South Umpqua River near Brockway, OR | 14312000 | SOUTH UMPQUA RIVER NEAR BROCKWAY, OR | 1,670 sq mi | 1905 | 135 cfs | Too low |
| Umatilla River near Umatilla, OR | 14033500 | UMATILLA RIVER NEAR UMATILLA, OR | 2,290 sq mi | 1903 | 190 cfs | Fishable/Floatable |
| Umpqua River near Elkton, OR | 14321000 | UMPQUA RIVER NEAR ELKTON, OR | 3,683 sq mi | 1905 | 1,030 cfs | Fishable/Floatable |
| Willamette River at Salem, OR | 14191000 | WILLAMETTE RIVER AT SALEM, OR | 7,280 sq mi | 1909 | 7,630 cfs | Fishable/Floatable |
| Williamson River below Sprague River, near Chiloquin, OR | 11502500 | WILLIAMSON RIVER BLW SPRAGUE RIVER NR CHILOQUIN,OR | 3,030 sq mi | 1917 | 538 cfs | Fishable/Floatable |
| Wilson River near Tillamook, OR | 14301500 | WILSON RIVER NEAR TILLAMOOK, OR | 161 sq mi | 1914 | 352 cfs | Fishable/Floatable |
Washington (40 gauges)
| River | USGS site | USGS station name | Drainage area | Daily record since | Flow now | Status |
|---|---|---|---|---|---|---|
| Bogachiel River near Forks, WA | 12042800 | BOGACHIEL RIVER NEAR FORKS, WA | 111 sq mi | 1975 | 215 cfs | Fishable/Floatable |
| Calawah River near Forks, WA | 12043000 | CALAWAH RIVER NEAR FORKS, WA | 129 sq mi | 1897 | 145 cfs | Fishable/Floatable |
| Cascade River at Marblemount, WA | 12182500 | CASCADE RIVER AT MARBLEMOUNT, WA | 172 sq mi | 1928 | 170 cfs | Too low |
| Cedar River near Landsburg, WA | 12117500 | CEDAR RIVER NEAR LANDSBURG, WA | 121 sq mi | 1895 | 401 cfs | Fishable/Floatable |
| Chehalis River near Grand Mound, WA | 12027500 | CHEHALIS RIVER NEAR GRAND MOUND, WA | 895 sq mi | 1928 | 243 cfs | No current data |
| Cowlitz River at Castle Rock, WA | 14243000 | COWLITZ RIVER AT CASTLE ROCK, WA | 2,238 sq mi | 1926 | 4,390 cfs | Fishable/Floatable |
| Cowlitz River at Packwood, WA | 14226500 | COWLITZ RIVER AT PACKWOOD, WA | 287 sq mi | 1911 | 268 cfs | Too low |
| Dungeness River near Sequim, WA | 12048000 | DUNGENESS RIVER NEAR SEQUIM, WA | 156 sq mi | 1923 | 86.3 cfs | Too low |
| Elwha River at McDonald Bridge, near Port Angeles, WA | 12045500 | ELWHA RIVER AT MCDONALD BR NEAR PORT ANGELES, WA | 269 sq mi | 1897 | 250 cfs | Too low |
| Green River near Auburn, WA | 12113000 | GREEN RIVER NEAR AUBURN, WA | 399 sq mi | 1936 | 435 cfs | Fishable/Floatable |
| Hoh River at US Highway 101, near Forks, WA | 12041200 | HOH RIVER AT US HIGHWAY 101 NEAR FORKS, WA | 253 sq mi | 1960 | 542 cfs | Too low |
| Icicle Creek above Snow Creek, near Leavenworth, WA | 12458000 | ICICLE CREEK ABOVE SNOW CREEK NEAR LEAVENWORTH, WA | 193 sq mi | 1936 | 92.3 cfs | Fishable/Floatable |
| Klickitat River near Pitt, WA | 14113000 | KLICKITAT RIVER NEAR PITT, WA | 1,297 sq mi | 1909 | 624 cfs | Fishable/Floatable |
| Lewis River at Ariel, WA | 14220500 | LEWIS RIVER AT ARIEL, WA | 731 sq mi | 1909 | 2,570 cfs | Fishable/Floatable |
| Methow River at Winthrop, WA | 12448500 | METHOW RIVER AT WINTHROP, WA | 1,007 sq mi | 1912 | 209 cfs | Fishable/Floatable |
| Methow River near Pateros, WA | 12449950 | METHOW RIVER NEAR PATEROS, WA | 1,772 sq mi | 1959 | 325 cfs | Too low |
| Nisqually River near National, WA | 12082500 | NISQUALLY RIVER NEAR NATIONAL, WA | 133 sq mi | 1942 | 135 cfs | Too low |
| Nooksack River at Ferndale, WA | 12213100 | NOOKSACK RIVER AT FERNDALE, WA | 786 sq mi | 1966 | 501 cfs | Too low |
| North Fork Skokomish River below Staircase Rapids, near Hoodsport, WA | 12056500 | NF SKOKOMISH R BL STAIRCASE RPDS NR HOODSPORT, WA | 57 sq mi | 1924 | 253 cfs | Fishable/Floatable |
| North Fork Stillaguamish River near Arlington, WA | 12167000 | NF STILLAGUAMISH RIVER NEAR ARLINGTON, WA | 262 sq mi | 1928 | 197 cfs | Too low |
| Okanogan River near Tonasket, WA | 12445000 | OKANOGAN RIVER NEAR TONASKET, WA | 7,260 sq mi | 1929 | 493 cfs | Too low |
| Puyallup River at Puyallup, WA | 12101500 | PUYALLUP RIVER AT PUYALLUP, WA | 948 sq mi | 1914 | 808 cfs | Too low |
| Queets River near Clearwater, WA | 12040500 | QUEETS RIVER NEAR CLEARWATER, WA | 445 sq mi | 1930 | 1,130 cfs | Fishable/Floatable |
| Quinault River at Quinault Lake, WA | 12039500 | QUINAULT RIVER AT QUINAULT LAKE, WA | 264 sq mi | 1911 | 538 cfs | Too low |
| Sauk River near Sauk, WA | 12189500 | SAUK RIVER NEAR SAUK, WA | 714 sq mi | 1911 | 712 cfs | Too low |
| Skagit River at Marblemount, WA | 12181000 | SKAGIT RIVER AT MARBLEMOUNT, WA | 1,381 sq mi | 1943 | 3,630 cfs | Fishable/Floatable |
| Skagit River near Mount Vernon, WA | 12200500 | SKAGIT RIVER NEAR MOUNT VERNON, WA | 3,093 sq mi | 1940 | 7,750 cfs | Fishable/Floatable |
| Skokomish River near Potlatch, WA | 12061500 | SKOKOMISH RIVER NEAR POTLATCH, WA | 227 sq mi | 1943 | 566 cfs | Fishable/Floatable |
| Skykomish River near Gold Bar, WA | 12134500 | SKYKOMISH RIVER NEAR GOLD BAR, WA | 535 sq mi | 1928 | 435 cfs | Too low |
| Snoqualmie River near Carnation, WA | 12149000 | SNOQUALMIE RIVER NEAR CARNATION, WA | 603 sq mi | 1929 | 485 cfs | Too low |
| Snoqualmie River near Snoqualmie, WA | 12144500 | SNOQUALMIE RIVER NEAR SNOQUALMIE, WA | 375 sq mi | 1898 | 403 cfs | Too low |
| Spokane River at Spokane, WA | 12422500 | Spokane River at Spokane, WA | 4,290 sq mi | 1891 | 1,620 cfs | Fishable/Floatable |
| Stehekin River at Stehekin, WA | 12451000 | STEHEKIN RIVER AT STEHEKIN, WA | 321 sq mi | 1910 | 235 cfs | Too low |
| Toutle River at Tower Road, near Silver Lake, WA | 14242580 | TOUTLE RIVER AT TOWER ROAD NEAR SILVER LAKE, WA | 496 sq mi | 1981 | 590 cfs | Fishable/Floatable |
| Walla Walla River near Touchet, WA | 14018500 | WALLA WALLA RIVER NEAR TOUCHET, WA | 1,657 sq mi | 1951 | 61.0 cfs | Fishable/Floatable |
| Wenatchee River at Peshastin, WA | 12459000 | WENATCHEE RIVER AT PESHASTIN, WA | 1,000 sq mi | 1929 | 351 cfs | Too low |
| White Salmon River near Underwood, WA | 14123500 | WHITE SALMON RIVER NEAR UNDERWOOD, WA | 386 sq mi | 1912 | 432 cfs | Too low |
| Wynoochee River above Save Creek, near Aberdeen, WA | 12036000 | WYNOOCHEE RIVER ABOVE SAVE CREEK NEAR ABERDEEN, WA | 74 sq mi | 1925 | 216 cfs | Too low |
| Yakima River at Kiona, WA | 12510500 | YAKIMA RIVER AT KIONA, WA | 5,615 sq mi | 1905 | 1,820 cfs | Fishable/Floatable |
| Yakima River at Umtanum, WA | 12484500 | YAKIMA RIVER AT UMTANUM, WA | 1,594 sq mi | 1908 | 691 cfs | Fishable/Floatable |
Idaho (25 gauges)
| River | USGS site | USGS station name | Drainage area | Daily record since | Flow now | Status |
|---|---|---|---|---|---|---|
| Big Wood River at Hailey (total flow), ID | 13139510 | BIG WOOD RIVER AT HAILEY ID TOTAL FLOW | 614 sq mi | 1915 | 180 cfs | Fishable/Floatable |
| Boise River at Glenwood Bridge, near Boise, ID | 13206000 | BOISE RIVER AT GLENWOOD BRIDGE NR BOISE ID | 2,773 sq mi | 1938 | 232 cfs | Fishable/Floatable |
| Boise River near Twin Springs, ID | 13185000 | BOISE RIVER NR TWIN SPRINGS ID | 832 sq mi | 1911 | 378 cfs | Fishable/Floatable |
| Clearwater River at Spalding, ID | 13342500 | CLEARWATER RIVER AT SPALDING ID | 9,283 sq mi | 1910 | 3,200 cfs | Fishable/Floatable |
| Coeur d'Alene River near Cataldo, ID | 12413500 | COEUR D ALENE RIVER NR CATALDO ID | 1,208 sq mi | 1911 | 285 cfs | Too low |
| Henrys Fork at St. Anthony, ID | 13050500 | HENRYS FORK AT ST ANTHONY ID | 1,770 sq mi | 1919 | 1,030 cfs | Fishable/Floatable |
| Henrys Fork near Ashton, ID | 13046000 | HENRYS FORK NR ASHTON ID | 1,097 sq mi | 1890 | 629 cfs | Too low |
| Henrys Fork near Island Park, ID | 13042500 | HENRYS FORK NR ISLAND PARK ID | 501 sq mi | 1933 | 86.0 cfs | Too low |
| Lemhi River near Lemhi, ID | 13305000 | LEMHI RIVER NR LEMHI ID | 897 sq mi | 1938 | 197 cfs | Fishable/Floatable |
| Lochsa River near Lowell, ID | 13337000 | LOCHSA RIVER NR LOWELL ID | 1,178 sq mi | 1910 | 470 cfs | Fishable/Floatable |
| Middle Fork Salmon River at Middle Fork Lodge, near Yellow Pine, ID | 13309220 | MF SALMON RIVER AT MF LODGE NR YELLOW PINE ID | 1,042 sq mi | 1973 | 545 cfs | Fishable/Floatable |
| North Fork Payette River near Banks, ID | 13246000 | NF PAYETTE RIVER NR BANKS ID | 921 sq mi | 1947 | 261 cfs | Fishable/Floatable |
| Pahsimeroi River at Ellis, ID | 13302005 | PAHSIMEROI RIVER AT ELLIS ID | 830 sq mi | 1984 | 213 cfs | Fishable/Floatable |
| Salmon River at Salmon, ID | 13302500 | SALMON RIVER AT SALMON ID | 3,737 sq mi | 1912 | 1,200 cfs | Fishable/Floatable |
| Salmon River at White Bird, ID | 13317000 | SALMON RIVER AT WHITE BIRD ID | 13,421 sq mi | 1910 | 4,390 cfs | Fishable/Floatable |
| Salmon River near Shoup, ID | 13307000 | SALMON RIVER NR SHOUP ID | 6,239 sq mi | 1944 | 1,800 cfs | Fishable/Floatable |
| Silver Creek at Sportsman Access, near Picabo, ID | 13150430 | SILVER CREEK AT SPORTSMAN ACCESS NR PICABO ID | 70 sq mi | 1974 | 96.6 cfs | Fishable/Floatable |
| Snake River at Neeley, ID | 13077000 | SNAKE RIVER AT NEELEY ID | 13,600 sq mi | 1907 | 288 cfs | Too low |
| Snake River near Heise, ID | 13037500 | SNAKE RIVER NR HEISE ID | 5,752 sq mi | 1910 | 2,040 cfs | Fishable/Floatable |
| Snake River near Irwin, ID | 13032500 | SNAKE RIVER NR IRWIN ID | 5,225 sq mi | 1935 | 1,430 cfs | Fishable/Floatable |
| South Fork Boise River at Anderson Ranch Dam, ID | 13190500 | SF BOISE RIVER AT ANDERSON RANCH DAM ID | 978 sq mi | 1943 | 300 cfs | Fishable/Floatable |
| South Fork Clearwater River at Stites, ID | 13338500 | SF CLEARWATER RIVER AT STITES ID | 1,168 sq mi | 1911 | 183 cfs | Fishable/Floatable |
| St. Joe River at Calder, ID | 12414500 | ST JOE RIVER AT CALDER, ID | 1,025 sq mi | 1911 | 376 cfs | Fishable/Floatable |
| Teton River above South Leigh Creek, near Driggs, ID | 13052200 | TETON RIVER AB SOUTH LEIGH CREEK NR DRIGGS ID | 337 sq mi | 1961 | 226 cfs | Fishable/Floatable |
| Teton River near St. Anthony, ID | 13055000 | TETON RIVER NR ST ANTHONY ID | 876 sq mi | 1890 | 381 cfs | Too low |
Montana (38 gauges)
| River | USGS site | USGS station name | Drainage area | Daily record since | Flow now | Status |
|---|---|---|---|---|---|---|
| Beaverhead River at Dillon, MT | 06017000 | Beaverhead River at Dillon MT | 2,892 sq mi | 1950 | 141 cfs | Fishable/Floatable |
| Beaverhead River near Twin Bridges, MT | 06018500 | Beaverhead River near Twin Bridges MT | 3,618 sq mi | 1935 | 237 cfs | Fishable/Floatable |
| Big Hole River below Big Lake Creek, at Wisdom, MT | 06024450 | Big Hole River bl Big Lake Cr at Wisdom MT | 586 sq mi | 1988 | 162 cfs | Use caution |
| Big Hole River near Melrose, MT | 06025500 | Big Hole River near Melrose MT | 2,472 sq mi | 1923 | 680 cfs | High but doable |
| Bighorn River below Yellowtail Afterbay Dam, near St. Xavier, MT | 06287000 | Bighorn R bl Yellowtail Afterbay Dam nr St. Xavier | 19,670 sq mi | 1934 | 1,800 cfs | Fishable/Floatable |
| Bitterroot River near Darby, MT | 12344000 | Bitterroot River near Darby MT | 1,050 sq mi | 1937 | 265 cfs | Fishable/Floatable |
| Bitterroot River near Missoula, MT | 12352500 | Bitterroot River near Missoula MT | 2,824 sq mi | 1898 | 934 cfs | Fishable/Floatable |
| Blackfoot River near Bonner, MT | 12340000 | Blackfoot River near Bonner MT | 2,287 sq mi | 1898 | 676 cfs | Fishable/Floatable |
| Clark Fork above Missoula, MT | 12340500 | Clark Fork above Missoula MT | 6,021 sq mi | 1929 | 1,780 cfs | High but doable |
| Clark Fork below Missoula, MT | 12353000 | Clark Fork below Missoula MT | 9,017 sq mi | 1929 | 2,650 cfs | Fishable/Floatable |
| Clark Fork near Plains, MT | 12389000 | Clark Fork near Plains MT | 19,964 sq mi | 1910 | 10,600 cfs | Fishable/Floatable |
| Flathead River at Columbia Falls, MT | 12363000 | Flathead River at Columbia Falls MT | 4,473 sq mi | 1922 | 3,600 cfs | Fishable/Floatable |
| Gallatin River at Logan, MT | 06052500 | Gallatin River at Logan MT | 1,789 sq mi | 1893 | 756 cfs | Fishable/Floatable |
| Gallatin River near Gallatin Gateway, MT | 06043500 | Gallatin River near Gallatin Gateway, MT | 819 sq mi | 1889 | 413 cfs | Fishable/Floatable |
| Jefferson River near Three Forks, MT | 06036650 | Jefferson River near Three Forks MT | 9,558 sq mi | 1978 | 1,720 cfs | Fishable/Floatable |
| Jefferson River near Twin Bridges, MT | 06026500 | Jefferson River near Twin Bridges, MT | 7,616 sq mi | 1940 | 1,490 cfs | Fishable/Floatable |
| Judith River near mouth, near Winifred, MT | 06114700 | Judith River nr mouth, nr Winifred MT | 2,747 sq mi | 2000 | 364 cfs | Fishable/Floatable |
| Kootenai River below Libby Dam, near Libby, MT | 12301933 | Kootenai River bl Libby Dam nr Libby MT | 8,999 sq mi | 1971 | 4,220 cfs | Fishable/Floatable |
| Madison River below Ennis Lake, near McAllister, MT | 06041000 | Madison River bl Ennis Lake nr McAllister MT | 2,213 sq mi | 1938 | 1,360 cfs | Fishable/Floatable |
| Madison River near Cameron, MT | 06040000 | Madison River near Cameron MT | 1,728 sq mi | 1951 | 994 cfs | Fishable/Floatable |
| Madison River near West Yellowstone, MT | 06037500 | Madison River near West Yellowstone, MT | 438 sq mi | 1913 | 322 cfs | Too low |
| Marias River near Loma, MT | 06102050 | Marias River near Loma MT | 7,027 sq mi | 1959 | 497 cfs | Fishable/Floatable |
| Marias River near Shelby, MT | 06099500 | Marias River near Shelby MT | 2,716 sq mi | 1902 | 295 cfs | Fishable/Floatable |
| Middle Fork Flathead River near West Glacier, MT | 12358500 | M F Flathead River near West Glacier MT | 1,125 sq mi | 1939 | 487 cfs | Fishable/Floatable |
| Missouri River at Fort Benton, MT | 06090800 | Missouri River at Fort Benton MT | 24,297 sq mi | 1890 | 5,030 cfs | Fishable/Floatable |
| Missouri River at Toston, MT | 06054500 | Missouri River at Toston MT | 14,641 sq mi | 1890 | 4,190 cfs | Fishable/Floatable |
| Missouri River below Holter Dam, near Wolf Creek, MT | 06066500 | Missouri River bl Holter Dam nr Wolf Cr MT | 16,924 sq mi | 1945 | 2,840 cfs | Too low |
| Rock Creek near Clinton, MT | 12334510 | Rock Creek near Clinton MT | 889 sq mi | 1972 | 342 cfs | Use caution |
| Ruby River below reservoir, near Alder, MT | 06020600 | Ruby River below reservoir near Alder, MT | 595 sq mi | 1962 | 44.6 cfs | Fishable/Floatable |
| Ruby River near Twin Bridges, MT | 06023000 | Ruby River near Twin Bridges MT | 970 sq mi | 1940 | 205 cfs | Fishable/Floatable |
| Smith River near Eden, MT | 06077500 | Smith River near Eden MT | 1,588 sq mi | 1951 | 128 cfs | Fishable/Floatable |
| Stillwater River near Absarokee, MT | 06205000 | Stillwater River near Absarokee, MT | 936 sq mi | 1910 | 451 cfs | Fishable/Floatable |
| Sun River at Simms, MT | 06085800 | Sun River at Simms MT | 1,296 sq mi | 1966 | 301 cfs | Use caution |
| Sun River near Vaughn, MT | 06089000 | Sun River near Vaughn MT | 1,774 sq mi | 1934 | 524 cfs | Use caution |
| Yaak River near Troy, MT | 12304500 | Yaak River near Troy MT | 792 sq mi | 1956 | 91.6 cfs | Too low |
| Yellowstone River at Billings, MT | 06214500 | Yellowstone River at Billings MT | 11,807 sq mi | 1904 | 3,190 cfs | Fishable/Floatable |
| Yellowstone River at Corwin Springs, MT | 06191500 | Yellowstone River at Corwin Springs MT | 2,615 sq mi | 1889 | 1,180 cfs | Fishable/Floatable |
| Yellowstone River near Livingston, MT | 06192500 | Yellowstone River near Livingston, MT | 3,551 sq mi | 1897 | 1,640 cfs | Fishable/Floatable |
Site numbers, station names, drainage areas and record start dates come from the USGS Water Data API for each gauge; “Daily record since” is the first daily value Flowcast received from USGS, which can differ from the station's official period of record. Flow is the latest USGS reading (provisional) and the status compares it with that gauge's own history for the date. Site-number links go to the USGS page for the gauge.
Data from the U.S. Geological Survey (USGS). Readings are provisional and subject to revision. Flowcast statuses are automated comparisons with each gauge's own history, not safety ratings or fishing reports. Check local conditions, weather, regulations and closures before you go. Rivers can change quickly.