Lake Dillon is a large reservoir located in Summit County, Colorado. It was created in the 1960s by the construction of the Dillon Dam on the Blue River. The lake serves as a crucial water supply for the surrounding areas and is also a popular recreational destination. Visitors to Lake Dillon can enjoy various activities such as boating, fishing, and hiking along the scenic trails. The lake is surrounded by stunning mountain views, making it a picturesque spot for photography and outdoor adventures. It is also part of the Dillon Reservoir Recreation Area, which offers facilities for picnicking and camping.