Sprague Mountain is a 12,713-foot-elevation (3,875-meter) mountain summit on the boundary shared by Grand County and Larimer County, in Colorado, United States. It is set on the Continental Divide in the Front Range of the Rocky Mountains, and 12.5 miles (20.1 km) west of the community of Estes Park. Precipitation runoff from the mountain's east side drains into tributaries of the Big Thompson River and the west slope drains into headwaters of Tonahutu Creek which flows to Grand Lake. Topographic relief is significant as the summit rises over 1,900 feet above Tonahutu Creek in one mile. The peak is visible from Trail Ridge Road.