Parfrey's Glen State Natural Area
| Parfrey's Glen State Natural Area | |
|---|---|
Parfrey's Glen  | |
| Location | Sauk, Wisconsin, United States | 
| Coordinates | 43°25′05″N 89°38′29″W / 43.41806°N 89.64139°W | 
| Area | 508 acres (206 ha) | 
| Established | 1952 | 
Parfrey's Glen, located within Devil's Lake State Park, is a Wisconsin Department of Natural Resources-designated State Natural Area. The glen is a deep gorge cut through the sandstone of the south flank of the Baraboo Hills. It was the first State Natural Area to be designated in Wisconsin. The valley was named for Robert Parfrey.