St. Joe State Park is a Missouri state park located in Park Hills on the flanks of the Saint Francois Mountains. It encompasses 8,238 acres with a 2,000-acre off-road vehicle (ORV) riding area located on the old St. Joe mine tailings dumps. It also contains camping facilities and trails for hiking, bicycling, or horse back riding. The park also includes the historic St. Joe Minerals mill buildings and a geologic and mining museum located on the 25-acre Missouri Mines State Historic Site.