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Yellowstone Vacation Tours

Firehole River in Wyoming

River21.2 mi
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Around here

Around Firehole River

5 mi

Before you go

Data Source: Recreation.gov · Source: USGS GNIS · Thermal springs: NOAA NCEI (1980) · Public land: USGS PAD-US · Forest roads: USDA Forest Service MVUM · BLM routes and areas: Bureau of Land Management (simplified for web display)

About this river

Firehole River is a 21.2 mile river near Yellowstone Vacation Tours in Montana. Streamflow is measured at the USGS gauge Firehole River at Old Faithful, YNP (site 06036805). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

2007 to 2026

Firehole River typically runs highest in June, at a median 140 cfs, and lowest in March, at 40 cfs. The highest flow on record for any single day is 490 cfs, in 2022.

Show the numbers
Typical flow by month at Firehole River at Old Faithful, YNP, in cfs
MonthTypical (cfs)Usual range (cfs)
January4239 to 45
February4138 to 43
March4037 to 44
April4641 to 54
May10583 to 164
June14062 to 195
July5442 to 72
August4841 to 61
September4839 to 57
October5042 to 56
November4741 to 51
December4440 to 48

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 19 years of record. Statistics published by the US Geological Survey for Firehole River at Old Faithful, YNP (site 06036805). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

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This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.

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