Located on the Blue River approximately 12 miles southeast of Kremmling, Green Mountain Reservoir was built between 1938 and 1943. The reservoir, dam and power plant were the first Colorado-Big Thompson (C-BT) Project facilities constructed. The reservoir’s primary purpose is to compensate the West Slope for C-BT Project water diverted to the East Slope.
The Green Mountain Power Plant began producing electricity in May 1943. It is one of eight C-BT Project hydroelectric power plants, and one of only two on the West Slope. Located at the base of Green Mountain Dam, the 25.8-megawatt power plant cost $1.5 million to build.
Green Mountain Reservoir has a capacity of 154,645 acre-feet, 2,130 surface acres, 19 miles of shoreline and a maximum depth of 254 feet. The dam is 309 feet high.
