Reservoir · Wyoming · United States · BOR RISE
Anchor Reservoir and Dam
7.6% full
Capacity
21.41 hm³
Volume stored
2 hm³
Coordinates
43.664°N, 108.824°W
Last updated
2026-06-10
Current fill
7.6%vs 7 days ago
-0.4%losing
vs 1 year ago
+1.9%year-over-year
7-day trend
→stable
Data source: BOR RISE — US Bureau of Reclamation — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-06-10.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 43.664, -108.824 · Open in Google Maps
About Anchor Reservoir and Dam
As of June 10, 2026, Anchor Reservoir and Dam is filled to 7.6% of its total capacity, holding roughly 2 hm³ of water out of a maximum 21 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (-0.4 pts), and it is 1.9 points above its level on the same date a year earlier.
Across the readings we hold for Anchor Reservoir and Dam — 1789 data points between June 13, 2021 and June 10, 2026 — the level has ranged from a low of 2.5% (January 14, 2022) to a high of 57.0% (January 17, 2025). On average the reservoir is fullest around June and at its lowest around February.
It is operated by BOR primarily for multiple purposes. It lies within the Wyoming basin at 43.664°N, 108.824°W.
Key facts
- Current fill level
- 7.6%
- Water stored
- 2 hm³
- Total capacity
- 21 hm³
- 7-day change
- ▼ 0.4 pts
- Year-on-year
- ▲ 1.9 pts
- Primary use
- Multipurpose
- River basin
- Wyoming
- Operator
- BOR
- Coordinates
- 43.664°N, 108.824°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 7.6% | 2 |
| 9 Jun 2026 | 8.0% | 2 |
| 8 Jun 2026 | 8.3% | 2 |
| 7 Jun 2026 | 8.6% | 2 |
| 6 Jun 2026 | 8.6% | 2 |
| 5 Jun 2026 | 8.5% | 2 |
| 4 Jun 2026 | 8.5% | 2 |
| 3 Jun 2026 | 8.3% | 2 |
| 2 Jun 2026 | 8.3% | 2 |
| 1 Jun 2026 | 8.4% | 2 |
| 31 May 2026 | 8.5% | 2 |
| 30 May 2026 | 8.5% | 2 |
Frequently asked questions
What is the current water level of Anchor Reservoir and Dam?
As of June 10, 2026, Anchor Reservoir and Dam is at 7.6% of its capacity, holding approximately 2 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Anchor Reservoir and Dam reservoir full?
No. As of June 10, 2026, Anchor Reservoir and Dam is critically low at 7.6% of its capacity, so it is not full.
Is the water level at Anchor Reservoir and Dam rising or falling?
The level at Anchor Reservoir and Dam has been broadly stable over the latest week on record (-0.4 points).
How much water can Anchor Reservoir and Dam hold?
Anchor Reservoir and Dam has a total capacity of 21 hm³.
Where is Anchor Reservoir and Dam reservoir located?
Anchor Reservoir and Dam is located in Wyoming, United States, within the Wyoming basin (coordinates 43.664°N, 108.824°W).
What is Anchor Reservoir and Dam used for?
Anchor Reservoir and Dam is used primarily for multiple purposes, and is managed by BOR.