Maquoketa Caves State Park was created in 1921.
The Maquoketa Caves in Iowa were formed millions of years ago by the dissolution of the local bedrock, primarily dolomite, by groundwater. Over time, this erosion process created the unique cave systems and features that are now part of the Maquoketa Caves State Park.
Carter Caves State Resort Park was created in 1946.
Naracoorte Caves National Park was created in 1994.
Camooweal Caves National Park was created in 1988.
Chillagoe-Mungana Caves National Park was created in 1995.
Mount Etna Caves National Park was created in 1994.
The area of Carter Caves State Resort Park is 6,474,970.27584 square meters.
Pipistrelle bats in Arkanas can be found in caves in Devil's Den State Park and Withrow Springs State Park.
State Forest State Park was created in 1970.
Snow Canyon State Park was created in 1958.
Lake Wappapello State Park was created in 1956.
Roxborough State Park was created in 1975.