RIVER GAUGE · GALLATIN RIVER
Gallatin River at Logan
Gallatin County, Montana
Water level4.66 ft
Flow466 cfs
Last readingSep 16, 2026, 5:00 PM UTC (last recorded)
Action8 ft4,717 cfs
Minor flood9 ft6,907 cfs
Moderate flood10 ft9,388 cfs
Major flood11 ft12,611 cfs
The past week
Loading chart…
What floods at each level
- 9.9 ft
Water into USGS gage house.
- 8.8 ft
Water may be on small bridges and around railroad bridge footing.
- 8.7 ft
February 2019...Ice Jam. Water level near 8.7 feet. Water flooding farm field next to river.
- 8.3 ft
Minor lowland flooding near Logan.
- 8.1 ft
Lowland flooding occurs. Water may cross some smaller roads.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Feb 4, 1963 | 11.88 ft | — |
| Feb 16, 1969 | 11.85 ft | — |
| Feb 28, 2019 | 10.87 ft | 11,400 cfs |
More on Gallatin River
DownstreamMissouri River at Toston
Get an alert when Gallatin River rises
Save this gauge in the free StormCast app and pick the level that matters to you. Your phone goes off when the water gets there.
