Lone Star Lake

Lone Star Lake is a 185 acre lake located in Douglas County, in the U.S. state of Kansas. The lake lies to the southwest of the unincorporated community of Lone Star, Kansas. Lone Star Lake Park surrounds the lake and offers camping, picnic shelters, and a swimming beach. The lake and park are owned and operated by Douglas County.

The Civilian Lone Star Lake Park Conservation Corps began construction of the lake in 1934 for the Forestry Fish and Game Commission. Unable to continue financing construction, the Commission transferred the Lone Star Lake Project to Douglas County in 1937. The lake was completed in 1939. The Clean Lakes Act provided for rehabilitation in 1981, including shoreline restoration and improving water quality. The spillway was completely reconstructed beginning in 2000 due to severe erosion.