Dillon Reservoir
General data
- Name: Dillon Reservoir
- Water system: Colorado River (Gulf of California)
- Water type: Artificial lake
- Progression: Blue River (Colorado) -> Colorado River (Gulf of California) -> Gulf of California -> Pacific Ocean -> Planet Earth
- Climates: Subtropical
- Continents: North America
- Countries: United States of America
Dillon Reservoir, sometimes referred to as Lake Dillon, is a large fresh water reservoir located in Summit County, Colorado, United States, 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.