Woodman Sand Prairie and Dead Lake features a dry sand prairie and sand barrens with several blowouts and dunes and Dead Lake, a shallow, seepage lake. The 17-acre lake has a maximum depth of only three feet and is considered to be deep marsh wetland with excellent habitat for muskrat, beaver, mink, and puddle ducks. In the sand prairie and barrens, dominant vegetation includes big blue-stem, few-flowered panic grass, Muhlenberg's bracted sedge, rough false pennyroyal, Virginia dwarf-dandelion, and wormwood. Lichens and mosses are abundant and include such species as British soldier and reindeer lichens (Cladonia). Also present are white wild indigo, American figwort, racemed milkwort, whorled milkweed, flowering spurge, and round-headed bush-clover. The rare clustered poppy mallow (Callirhoe triangulata) can be found in the surrounding area. Several blowouts and smaller dunes are present with the larger blowouts being stabilized by false heather and dwarf spike moss. The northwest portion of the area is of special interest due to the proximity of the rich Dead Lake Marsh. The marsh edge is quite dramatic as it grades rapidly from a wetland dominated by steeplebush and sedges to a sand blow all within a few feet. This feature makes the site good turtle habitat and many use the blowouts for nesting. The big sand tiger beetle is also found here. Woodman Sand Prairie and Dead Lake is owned by the DNR and was designated a State Natural Area in 1991.