St. Joe State Park is a public recreation area consisting of 8,243 acres (3,336 ha) on the south side of Park Hills, Missouri, along the flanks of the Saint Francois Mountains.[5] The state park includes the Missouri Mines State Historic Site with its former St. Joe Minerals mill buildings and museum of geology and mining.[6] The park features a 2,000-acre (810 ha) off-road vehicle (ORV) riding area located on the old lead mine tailings dumps, camping facilities, and trails for hiking, bicycling, and horseback riding.[5]