If you plan to visit any of Denver Water’s recreation areas, we encourage visitors to follow safety guidelines. Please be sure to check each of our recreation webpages for specific updates about a facility. No matter what area you visit, take precautions.
Play on and around Denver Water's largest reservoir
Completed in 1963, Dillon Reservoir has an earth-fill dam, 5,888 feet long by 231 feet above the Blue River streambed. The entire town of Dillon and a hydroelectric plant were relocated to build the dam, which diverts water from the Blue River Basin through the Harold D. Roberts Tunnel under the Continental Divide into the South Platte River Basin.