January 1998
U.S. Fish & Wildlife Service
Gray Wolf Populations
in the United States, 2006
Western Great Lakes Population (late winter of 2005 - 2006)
Michigan - Upper Peninsula 434
- Isle Royale 30
Minnesota 3,020 (last survey was 2003 - 2004)
Wisconsin 465
Total 3,949
Rocky Mountain Population (December 2006)
Northern Rocky Mountain Gray Wolf - natural recovery
Northwest Montana/Idaho Panhandle 159 (13 breeding pairs)
Northern Rocky Mountain Gray Wolf - Experimental Populations
Central Idaho 713 (46 breeding pairs)
Yellowstone ecosystem 371 (31 breeding pairs)
(Idaho/Wyoming/Montana)
Total 1,243
Southwestern Gray Wolf Distinct Population Segment (December 2006)
Mexican Gray Wolf - Experimental Population
Arizona & New Mexico 59 (7 breeding pairs)
Both the total count and the number of breeding pairs are at an all-time high
for this population.
Alaska (not protected by Endangered Species Act) 6,000-7,000
Currently Occupied Gray Wolf Habitat and Southwest Recovery Area
