Reservoir · Colorado · United States · BOR RISE
Green Mountain Reservoir Dam and Powerplant
38.7% full
Capacity
189.51 hm³
Volume stored
73 hm³
Coordinates
39.879°N, 106.313°W
Last updated
2026-06-10
Current fill
38.7%vs 7 days ago
0.0%stable
vs 1 year ago
+3.6%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. 39.879, -106.313 · Open in Google Maps
About Green Mountain Reservoir Dam and Powerplant
As of June 10, 2026, Green Mountain Reservoir Dam and Powerplant is filled to 38.7% of its total capacity, holding roughly 73 hm³ of water out of a maximum 190 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 3.6 points above its level on the same date a year earlier.
Across the readings we hold for Green Mountain Reservoir Dam and Powerplant — 1824 data points between June 13, 2021 and June 10, 2026 — the level has ranged from a low of 24.7% (April 13, 2024) to a high of 99.4% (July 21, 2023). On average the reservoir is fullest around July and at its lowest around April.
It is operated by BOR primarily for multiple purposes. It lies within the Colorado basin at 39.879°N, 106.313°W.
Key facts
- Current fill level
- 38.7%
- Water stored
- 73 hm³
- Total capacity
- 190 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 3.6 pts
- Primary use
- Multipurpose
- River basin
- Colorado
- Operator
- BOR
- Coordinates
- 39.879°N, 106.313°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 38.7% | 73 |
| 9 Jun 2026 | 38.7% | 73 |
| 8 Jun 2026 | 38.5% | 73 |
| 7 Jun 2026 | 38.2% | 72 |
| 6 Jun 2026 | 37.8% | 72 |
| 5 Jun 2026 | 37.3% | 71 |
| 4 Jun 2026 | 36.8% | 70 |
| 3 Jun 2026 | 36.3% | 69 |
| 2 Jun 2026 | 35.9% | 68 |
| 1 Jun 2026 | 35.4% | 67 |
| 31 May 2026 | 35.0% | 66 |
| 30 May 2026 | 34.6% | 66 |
Frequently asked questions
What is the current water level of Green Mountain Reservoir Dam and Powerplant?
As of June 10, 2026, Green Mountain Reservoir Dam and Powerplant is at 38.7% of its capacity, holding approximately 73 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Green Mountain Reservoir Dam and Powerplant reservoir full?
No. As of June 10, 2026, Green Mountain Reservoir Dam and Powerplant is low at 38.7% of its capacity, so it is not full.
Is the water level at Green Mountain Reservoir Dam and Powerplant rising or falling?
The level at Green Mountain Reservoir Dam and Powerplant has been broadly stable over the latest week on record (0.0 points).
How much water can Green Mountain Reservoir Dam and Powerplant hold?
Green Mountain Reservoir Dam and Powerplant has a total capacity of 190 hm³.
Where is Green Mountain Reservoir Dam and Powerplant reservoir located?
Green Mountain Reservoir Dam and Powerplant is located in Colorado, United States, within the Colorado basin (coordinates 39.879°N, 106.313°W).
What is Green Mountain Reservoir Dam and Powerplant used for?
Green Mountain Reservoir Dam and Powerplant is used primarily for multiple purposes, and is managed by BOR.