Johnson's Shut-Ins State Park

Johnson's Shut-Ins State Park is a public recreation area covering 9,432 acres (3, 817 ha) on the East Fork Black River in Reynolds County, Missouri. The state park is jointly administered with adjoining Taum Sauk Mountain State Park, and together the two parks cover more than sixteen thousand acres in the St. Francois Mountains region of the Missouri Ozarks. The term "shut-in" refers to a place where the river's breadth is limited by hard rock that is resistant to erosion. In these shut-ins, the river cascades over and around smooth-worn igneous rock, creating a natural water park that is used by park visitors when water levels are not dangerously high.

Park data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).