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Yellowstone River in Montana

River62.1 mi

Around here

Around Yellowstone River

Custer National Forest12.4 miFour Dances SRMA13 mi20 mi

Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US

About this river

Yellowstone River is a 62.1 mile river. Streamflow is measured at the USGS gauge Yellowstone River at Billings MT (site 06214500). The National Hydrography Dataset places it at stream order 8. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1929 to 2025

Yellowstone River typically runs highest in June, at a median 24,500 cfs, and lowest in January, at 2,430 cfs. The highest flow on record for any single day is 80,100 cfs, in 1997.

Show the numbers
Typical flow by month at Yellowstone River at Billings MT, in cfs
MonthTypical (cfs)Usual range (cfs)
January2,4302,000 to 2,970
February2,5002,100 to 2,990
March2,8102,350 to 3,420
April3,7802,860 to 4,720
May10,8007,500 to 16,000
June24,50017,850 to 32,400
July11,7007,290 to 16,900
August4,4603,110 to 5,940
September3,7102,655 to 4,790
October3,9103,170 to 4,670
November3,5703,100 to 4,065
December2,7802,240 to 3,290

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 96 years of record. Statistics published by the US Geological Survey for Yellowstone River at Billings MT (site 06214500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Boat access nearby

8 mapped launches sit in the mapped area of Yellowstone River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

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