Rough River Dam State Resort Park is a public recreation area encompassing 637 acres (258 ha) on Rough River Lake in Grayson County, Kentucky, United States. The Rough River Dam, stretching 1,590 feet (480 m) across and 135 feet (41 m) high, creates Rough River Lake, a recreational lake of approximately 5,100 acres (2,100 ha). The dam was constructed between 1955 and 1961.