Green Mountain Reservoir
RESERVOIR REPORT
September 29 2023117,857 acre-ft
-0.86% today100% of Normal • Normal
Water storage levels at Green Mountain Reservoir are currently 117,857 acre-ft, about 100% of normal. The average for this time of year is approximately 118,181.3acre-ft. Maximum recorded Storage since record keeping began in 1951 was 1957-07-18 when levels reached 155,838 acre-ft. Lowest recorded Storage was 1963-01-12 when levels receded to 8,145 acre-ft. View historical levels.
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.

Geolocation | -106.330, 39.878 |
Elevation | 7,960 ft |
Storage 24hr Change | -0.86% |
Percent of Normal | 100% |
Minimum |
8,145 acre-ft
1963-01-12 |
Maximum |
155,838 acre-ft
1957-07-18 |
Average | 118,181 acre-ft |
AREA SURFACE FLOWS
Streamgauge | Streamflow | Stage |
---|---|---|
TAYLOR RIVER AT ALMONT | 246 cfs | 1.9 ft |
EAST RIVER AT ALMONT CO. | 77 cfs | 2.7 ft |
ARKANSAS RIVER BELOW EMPIRE GULCH NEAR MALTA | 73 cfs | 3.0 ft |
ROARING FORK RIVER AB DIFFICULT C NR ASPEN | 24 cfs | 1.1 ft |
EAST RIVER BL CEMENT CREEK NR CRESTED BUTTE | 82 cfs | 1.0 ft |
ARKANSAS RIVER NEAR NATHROP | 349 cfs | 3.9 ft |