Keyhole Reservoir
Source: U.S. Bureau of Reclamation (RISE)
E 5 mph · rain 8%
SE 5 mph · rain 18%
Level history
Field notes
Keyhole Reservoir's latest daily level (Oct 24, 2026) is 4,083.70 (NGVD29) ft.
Reclamation reports storage of 81,384 acre-feet for the same day.
Over the past 7 days the lake has been falling (−0.06 ft), and it is −0.28 ft over 30 days.
Readings come from the Bureau of Reclamation's daily reservoir data for Keyhole Reservoir and Dam.
Lake facts
| Storage (latest) | 81,384 acre-feet |
|---|---|
| Gauge / station | Keyhole Reservoir and Dam |
| Elevation datum | ft (NGVD29) |
| Gauge location | 44.3819, -104.7792 |
Nearby lakes
Common questions
Is Keyhole Reservoir rising or falling?
Over the last 7 days it changed −0.06 ft and over 30 days −0.28 ft.
How full is Keyhole Reservoir?
Reclamation publishes the water surface elevation for this gauge but not a percent-full figure, so we don't show one rather than estimate it.
How often is this page updated?
The page is rebuilt automatically every day from Reclamation's published data. Values can be revised later by the source agency.
Where does the data come from?
The U.S. Bureau of Reclamation's RISE data portal (data.usbr.gov). Forecasts come from the National Weather Service.
Daily values published by the Bureau of Reclamation. Reclamation data are provisional and subject to revision unless otherwise noted. This page is not affiliated with or endorsed by the Bureau of Reclamation. See data sources.