Copper Breaks State Park is a state park in Hardeman County, located approximately 12 miles (19 km) south of Quanah, the county seat. It covers around 1,900 acres (770 ha) and contains two small lakes and 10 miles (16 km) of trails. Originally, Copper Breaks was part of the land held by the Comanche and Kiowa. Comanche mound sites can be found in Hardeman County, but not in the park itself. Purchased from a private landowner in 1970, the state park opened to the public in 1974.