Green Mountain Reservoir reservoir
Green Mountain Reservoir
Green Mountain Reservoir is a man-made lake located in Summit County, Colorado. It was constructed in 1942 as part of the Colorado River Storage Project and is owned and operated by the Bureau of Reclamation. The reservoir has a capacity of 106,000 acre-feet and is primarily used for irrigation and recreation. The water source of the reservoir is mainly from the Blue River and is supplemented by the snowmelt from surrounding mountains. The reservoir also receives water from the Dillon Reservoir through the Lower Blue River. The water is used for irrigation of farmland in the surrounding area and for recreational activities such as fishing, boating, and camping. The reservoir plays a critical role in the hydrology of the Blue River Basin and provides a significant source of water for the agriculture industry in the region.
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
Pool Elevation
ft · code 49
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 | → |
| Colorado River Near Kremmling | 257 cfs | → |
| Williams Fork Below Williams Fork Reservoir | 17 cfs | → |
| Piney River Below Piney Lake | 40 cfs | → |
| Piney River Near State Bridge | 75 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
- Elliott Creek
- Elliott Creek Campground
- Willows
- Cow Creek North Campground
- 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
🛡 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.