About this river
Blacks Fork is a 33.0 mile river near Buckboard Marina in Wyoming. Streamflow is measured at the USGS gauge Blacks Fork near Little America, WY (site 09224700). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1962 to 2026
Blacks Fork typically runs highest in June, at a median 696 cfs, and lowest in September, at 35 cfs. The highest flow on record for any single day is 10,200 cfs, in 2017.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 45 | 24 to 88 | |
| February | 80 | 40 to 115 | |
| March | 227 | 139 to 400 | |
| April | 289 | 162 to 565 | |
| May | 648 | 213 to 1,360 | |
| June | 696 | 181 to 1,370 | |
| July | 137 | 62 to 239 | |
| August | 47 | 12 to 104 | |
| September | 35 | 11 to 88 | |
| October | 53 | 23 to 114 | |
| November | 63 | 32 to 121 | |
| December | 45 | 26 to 89 |
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 64 years of record. Statistics published by the US Geological Survey for Blacks Fork near Little America, WY (site 09224700). 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 Blacks Fork'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.
