About this river
Fall River is an 8.9 mile river near Colter Bay Marina & Boat Launch in Wyoming. Streamflow is measured at the USGS gauge Fall River above Yellowstone Canal near Squirrel ID (site 13046995). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1994 to 2026
Fall River typically runs highest in May, at a median 2,130 cfs, and lowest in February, at 404 cfs. The highest flow on record for any single day is 5,700 cfs, in 2011.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 417 | 387 to 480 | |
| February | 404 | 371 to 453 | |
| March | 418 | 391 to 463 | |
| April | 649 | 518 to 965 | |
| May | 2,130 | 1,690 to 2,630 | |
| June | 2,075 | 1,435 to 2,565 | |
| July | 804 | 695 to 1,180 | |
| August | 635 | 530 to 805 | |
| September | 583 | 480 to 701 | |
| October | 572 | 484 to 649 | |
| November | 521 | 460 to 584 | |
| December | 450 | 411 to 519 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 32 years of record. Statistics published by the US Geological Survey for Fall River above Yellowstone Canal near Squirrel ID (site 13046995). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Fall River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
