Reservoir · Colorado · United States · BOR RISE
Shadow Mountain Lake and Dam
91.8% full
Capacity
22.66 hm³
Volume stored
21 hm³
Coordinates
40.207°N, 105.842°W
Last updated
2026-06-10
Current fill
91.8%vs 7 days ago
-0.1%losing
vs 1 year ago
0.0%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. 40.207, -105.842 · Open in Google Maps
About Shadow Mountain Lake and Dam
As of June 10, 2026, Shadow Mountain Lake and Dam is filled to 91.8% of its total capacity, holding roughly 21 hm³ of water out of a maximum 23 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.1 pts), and it sits close to where it was a year earlier.
Across the readings we hold for Shadow Mountain Lake and Dam — 1824 data points between June 13, 2021 and June 10, 2026 — the level has ranged from a low of 89.1% (June 12, 2022) to a high of 93.6% (May 26, 2026). On average the reservoir is fullest around January and at its lowest around June.
It is operated by BOR primarily for multiple purposes. It lies within the Colorado basin at 40.207°N, 105.842°W.
Key facts
- Current fill level
- 91.8%
- Water stored
- 21 hm³
- Total capacity
- 23 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- No change
- Primary use
- Multipurpose
- River basin
- Colorado
- Operator
- BOR
- Coordinates
- 40.207°N, 105.842°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 91.8% | 21 |
| 9 Jun 2026 | 91.9% | 21 |
| 8 Jun 2026 | 92.4% | 21 |
| 7 Jun 2026 | 92.1% | 21 |
| 6 Jun 2026 | 92.2% | 21 |
| 5 Jun 2026 | 92.4% | 21 |
| 4 Jun 2026 | 92.3% | 21 |
| 3 Jun 2026 | 92.7% | 21 |
| 2 Jun 2026 | 92.5% | 21 |
| 1 Jun 2026 | 92.2% | 21 |
| 31 May 2026 | 92.2% | 21 |
| 30 May 2026 | 92.2% | 21 |
Frequently asked questions
What is the current water level of Shadow Mountain Lake and Dam?
As of June 10, 2026, Shadow Mountain Lake and Dam is at 91.8% of its capacity, holding approximately 21 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Shadow Mountain Lake and Dam reservoir full?
No. As of June 10, 2026, Shadow Mountain Lake and Dam is high at 91.8% of its capacity, so it is not full.
Is the water level at Shadow Mountain Lake and Dam rising or falling?
The level at Shadow Mountain Lake and Dam has been broadly stable over the latest week on record (-0.1 points).
How much water can Shadow Mountain Lake and Dam hold?
Shadow Mountain Lake and Dam has a total capacity of 23 hm³.
Where is Shadow Mountain Lake and Dam reservoir located?
Shadow Mountain Lake and Dam is located in Colorado, United States, within the Colorado basin (coordinates 40.207°N, 105.842°W).
What is Shadow Mountain Lake and Dam used for?
Shadow Mountain Lake and Dam is used primarily for multiple purposes, and is managed by BOR.