Devils Lake State Park

Devil's Lake State Park is a state park located in the Baraboo Range in eastern Sauk County, just south of Baraboo, Wisconsin. Devil's Lake State Park is the largest state park in Wisconsin. It is around thirty-five miles northwest of Madison, and is on the western edge of the last ice-sheet deposited during the Wisconsin glaciation.

Devil's Lake is a lake in the South Range of the Baraboo Range, about two miles south of Baraboo, Wisconsin, in Sauk County, Wisconsin, USA. It has no surface outlets, so by some definitions, it is endorheic; however, it probably drains by underground channels into the Baraboo River. The lake is one of the primary attractions of Devil's Lake State Park.