Claim: The Dells of the Wisconsin River  is a gorge that was established as a State Natural Area in 1994 and owned by the Wisconsin Department of Natural Resources.
Evidence: The Dells of the Wisconsin River, also called the Wisconsin Dells (from French , or slab-like rocks), is a 5-mile (8-km) gorge on the Wisconsin River in south-central Wisconsin, USA. It was established as a State Natural Area in 1994. The area is now owned by the Wisconsin Department of Natural Resources and was designated a State Natural Area in 1994.