Primary and secondary wolf habitat in Wisconsin. Primary habitat represents those areas with a 50% or greater chance of supporting a wolf pack. Secondary habitat represents those areas with between a 10 and 50% chance of supporting a wolf pack. The remainder of the state is designated as unsuitable, with a less than 10% chance of supporting a wolf pack. The map shows 5,812 square miles of primary wolf habitat and 5,015 miles of secondary habitat statewide. There are 45,252 square miles which are considered unsuitable habitat. (Graphic by Ted Sickley, Department of Foresy Ecology & Management and Land Information and Computer Graphics Facility, University of Wisconsin-Madison based on Mladenoff et al, 1995.)