Dillon Reservoir Dillon Reservoir Dillon Reservoir, sometimes referred to as Lake Dillon, is a large fresh water reservoir located in Summit County, Colorado, south of I-70 and bordered by the towns of Frisco, Silverthorne, and Dillon. It is a reservoir for the city of Denver, and its waters are under the control of Denver Water. Popular ski areas are close to the reservoir, including Copper Mountain, Keystone, Arapahoe Basin, and Breckenridge. In 1859, a large party of gold-seekers led by Ruben Spalding discovered gold near the headwaters of the Blue River, which prompted a population surge in Summit County, Colorado. By October
Dillon, Montana Queen, McDonald's, Subway, Pita Pit, Taco John's, and Pizza Hut. Chain stores in Dillon are Safeway, Van's IGA, Ace Hardware, and Murdoch's Ranch & Home Supply. The Beaverhead County Museum is in Dillon. Public facilities in Dillon include the Dillon Public Library, Post Office, and Barrett's Park. The YMCA has a location within the city limits. Recreational activities that draw tourism to Dillon include fishing on the Beaverhead River, snowmobiling, hiking, shopping at the Patagonia outlet, four-wheeling, the annual Demolition Derby, and skiing at Maverick Mountain Ski Area. Bannack State Park is popular with tourists. Dillon is also home to