Cooney State Park is a public recreation area bordering Cooney Reservoir, fourteen miles (23 km) south of Columbus in Carbon County, Montana. The state park occupies 309 acres (125 ha) on three sides of the reservoir, a 1,078-acre (436 ha) impoundment of Red Lodge Creek completed in 1937.[5][6] The park offers boating, fishing, swimming, picnicking, and camping.[2]
^"Cooney Dam Fact Sheet"(PDF). Montana Department of Natural Resources and Conservation. Retrieved June 4, 2018.
^Staff (February 15, 2012). "Meeting tonight on Cooney State Park plan". Billings Gazette. Billings, Montana. Retrieved June 5, 2018. The park was established in 1969 along the shores of Cooney Reservoir, which was built by damming Red Lodge Creek in 1937 to store water for the Rock Creek Water Users Association. When full, the reservoir covers just more than 1,000 acres.