Summit County,  is located right in the heart of the Colorado Rocky Mountains about 90 miles west of Denver. and is home to four world-class ski resorts. Arapahoe Basin, Breckenridge, Copper Mountain and Keystone Resort offer thousands of acres of year-round recreation. The Blue River, Snake River and Ten-Mile Creek all feed Summit County’s two large reservoirs, Lake Dillon and Green Mountain Reservoir. Enjoy sailing, kayaking, canoeing, fishing and motorized water sports in these Summit County waters.