List of National Natural Landmarks in Wisconsin

[1] They cover areas of geological, biological and historical importance, and include dune and swales, swamps, bogs, and virgin forests.

The Driftless Area in southwest Wisconsin is known for its rare species, especially in the Baraboo Range.

[1] Owners include private individuals, Native American tribes, and several county, state and federal agencies.

The National Park Service determines which properties meet NNL criteria and, after notifying the owners, makes nomination recommendations.

[2] This designation provides indirect, partial protection of the historic integrity of the properties via tax incentives, grants, monitoring of threats, and other means.