Green Mountain Reservoir reservoir
Green Mountain Reservoir
Green Mountain Reservoir is located in Summit County, Colorado, and was constructed in the 1940s for hydroelectric power generation and irrigation. The reservoir is fed by the Blue River and other small tributaries, which provide water for recreational activities such as fishing, boating, and swimming. The reservoir can hold up to 106,000 acre-feet of water and is used as a storage facility for Denver Water. The surface flow providers for the reservoir include the Blue River, the Williams Fork River, and the Gore Creek. The reservoir also relies on snowmelt from the surrounding mountains for water supply. Agricultural use is limited in the area, but the reservoir provides irrigation water for some ranches in the region. Recreational activities are the primary use of the reservoir, attracting visitors from all over the country.
Daily levels at Green Mountain Reservoir
Storage volume, pool elevation, and total release plotted from the operating agency's daily observations.
Storage
acre-ft · code 17
Inflow
cfs · code 29
Pool Elevation
ft · code 49
Total Release
cfs · code 42
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Green Mountain Reservoir -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Blue River Below Green Mountain Reservoir | 65 cfs | → |
| Williams Fork Near Parshall | 27 cfs | → |
| Williams Fork Below Williams Fork Reservoir | 17 cfs | → |
| Colorado River Near Kremmling | 257 cfs | → |
| Piney River Below Piney Lake | 40 cfs | → |
| Williams Fork Near Leal | 65 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Green Mountain Reservoir.
⚓ Boat launches
- Co 9 Summit County
- Confluence Rec Site Boat Ramp
- Radium Rec Site Boat Ramp
- State Bridge River Access
- State Bridge Boat Ramp
- Eagle Valley Trail Avon
⛺ Campgrounds
- Willows
- Cow Creek North Campground
- Elliott Creek Campground
- Elliott Creek
- Cow Creek South Campground
- Cataract Creek Campground
🎣 Fishing spots
- Green Mountain Reservoir
- Lower Cataract Lake
- Upper Cataract Lake
- Williams Fork Reservoir
- Wolford Mountain Reservoir
- Nottingham Lake
🛶 Paddle runs
More paddle runs →🛡 More reservoirs
More reservoirs →Track Green Mountain Reservoir in the Snoflo app
Save this reservoir as a favorite and set push alerts when storage crosses a threshold (e.g. "alert me at 80% of normal").
About Green Mountain Reservoir
Where does the data for Green Mountain Reservoir come from?
Daily storage, pool elevation, and release rates are sourced from USGS, USBR, and USACE monitoring stations. Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
Storage observations are updated daily by the operating agency. The 15-day weather forecast refreshes throughout the day. Snoflo caches and renders the most recent observation -- check the "as of" timestamp on the storage card.
What does the Hazard hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this reservoir, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Green Mountain Reservoir.