Dillon Reservoir Avenue. The service area also extends from the west edge of Aurora to the east edge of Morrison. The exception in this region is that Denver Water does not cover the City of Englewood. Legally, Denver Water is not obligated to, nor does it provide customers the information of which watershed their tap water originated. </onlyinclude> 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
Dillon Reservoir 1859, nearly 100 miners had camped along the river. By 1880, the human population of Summit county had swelled to 5,459. In 1881, Dillon Mining Company patented a 320-acre parcel and divided it into lots to establish the trade-post town of Dillon along the northeast bank of the Snake River, which is part of what was then called Blue River Valley. The town of Dillon was incorporated in 1883, but soon relocated to the west bank of the Blue River when Denver and Rio Grand Railroad came to Blue River Valley but had bypassed Dillon. Dillon was moved a second