The area of Guadalupe River State Park is 7,845,640.5461068805 square meters.
The area of Kankakee River State Park is 16.187 square kilometers.
The area of Hillsborough River State Park is 13.691 square kilometers.
The area of Yampa River State Park is 12.594 square kilometers.
The area of Econfina River State Park is 13.666 square kilometers.
The area of Ochlockonee River State Park is 1,586,367.7175808 square meters.
Cossatot River State Park-Natural Area was created in 1988.
The area of Crystal River Archaeological State Park is 246,858.2417664 square meters.
The area of Crystal River Preserve State Park is 121.406 square kilometers.
The area of Bidwell-Sacramento River State Park is 1,412,352.8914176 square meters.
The area of Lower Wekiva River Preserve State Park is 72.843 square kilometers.
The area of Barren River Lake State Resort Park is 8,850,474.9957888 square meters.