Gallatin River in Montana
Around here
Around Gallatin River
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
Gallatin River is a 58.8 mile river. Streamflow is measured at the USGS gauge Gallatin River above Deer Creek, near Big Sky, MT (site 06043120). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
2019 to 2026
Gallatin River typically runs highest in June, at a median 1,725 cfs, and lowest in February, at 205 cfs. The highest flow on record for any single day is 5,640 cfs, in 2022.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 210 | 179 to 235 |
| February | 205 | 191 to 225 |
| March | 218 | 205 to 233 |
| April | 308 | 258 to 419 |
| May | 1,200 | 930 to 1,460 |
| June | 1,725 | 1,415 to 2,440 |
| July | 655 | 436 to 799 |
| August | 406 | 323 to 433 |
| September | 313 | 274 to 358 |
| October | 289 | 275 to 341 |
| November | 271 | 237 to 288 |
| December | 225 | 199 to 245 |
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 7 years of record. Statistics published by the US Geological Survey for Gallatin River above Deer Creek, near Big Sky, MT (site 06043120). 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 Gallatin 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.
