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Around Clarks Fork Yellowstone River
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
Clarks Fork Yellowstone River is a 62.1 mile river near Gradient Mountain Sports in Wyoming. Streamflow is measured at the USGS gauge Clarks Fork Yellowstone River nr Belfry MT (site 06207500). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1921 to 2025
Clarks Fork Yellowstone River typically runs highest in June, at a median 3,755 cfs, and lowest in March, at 221 cfs. The highest flow on record for any single day is 20,800 cfs, in 2022.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 232 | 200 to 273 |
| February | 223 | 191 to 254 |
| March | 221 | 194 to 247 |
| April | 333 | 241 to 499 |
| May | 1,730 | 946 to 2,850 |
| June | 3,755 | 2,700 to 5,475 |
| July | 1,830 | 1,160 to 2,870 |
| August | 471 | 304 to 685 |
| September | 254 | 159 to 373 |
| October | 258 | 171 to 364 |
| November | 292 | 244 to 364 |
| December | 262 | 221 to 311 |
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 104 years of record. Statistics published by the US Geological Survey for Clarks Fork Yellowstone River nr Belfry MT (site 06207500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
One mapped launch sits in the mapped area of Clarks Fork Yellowstone River. Ramp data comes from the USGS national boat-ramp inventory.
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Made to print
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Clarks Fork Yellowstone River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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