RIVER GAUGE
Keyhole Reservoir
Crook County, Wyoming
Water level4084.03 ft
Flow—
Last readingSep 16, 2026, 5:15 PM UTC (last recorded)
Action4099.3 ft193,753 cfs
The past week
Loading chart…
What floods at each level
- 4134 ft
Dam crest elevation.
- 4128.7 ft
Normal water surface elevation.
- 4111.5 ft
Top of flood control.
- 4099.3 ft
Spillway crest elevation. Top of active conservation capacity.
- 4051 ft
Top of inactive conservation pool.
- 4036 ft
Top of dead storage pool.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Mar 27, 2019 | 4101.98 ft | — |
| May 20, 1978 | 4100.38 ft | — |
| Mar 13, 2020 | 4099.58 ft | — |
DownstreamBelle Fourche River near Alva
Get an alert when it 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.
