Around here
Around Firehole River
- Yellowstone National ParkRecreation area15.1 mi (opens in a new tab)
- West Thumb Information StationVisitor center15.4 mi (opens in a new tab)
- West Yellowstone Visitor Information Center (NPS Desk)Visitor center15.5 mi (opens in a new tab)
- West Yellowstone Visitor Information Center (Chamber of Commerce Desk)Visitor center15.5 mi (opens in a new tab)
Before you go
- Timed entryTower Junction to Slough Creek Road Corridor Vehicle Day-Use Tickets
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
Firehole River is a 21.2 mile river near Yellowstone Fishing Guides 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
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 42 | 39 to 45 |
| February | 41 | 38 to 43 |
| March | 40 | 37 to 44 |
| April | 46 | 41 to 54 |
| May | 105 | 83 to 164 |
| June | 140 | 62 to 195 |
| July | 54 | 42 to 72 |
| August | 48 | 41 to 61 |
| September | 48 | 39 to 57 |
| October | 50 | 42 to 56 |
| November | 47 | 41 to 51 |
| December | 44 | 40 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.
Made to print
Put Firehole River on your wall
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.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Firehole 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.
