Michigan Wilderness Heritage Act of 1983

Michigan Wilderness Heritage Act of 1983 - Designates the following lands in Michigan as components of the National Wilderness Preservation System: (1) the Nordhouse Dunes Wilderness in the Manistee National Forest; (2) the Sylvania Wilderness in the Ottawa National Forest; (3) the Sturgeon River Gorge Wilderness in the Ottawa National Forest; (4) the Rock River Canyon Wilderness in the Hiawatha National Forest; (5) the Big Island Wilderness in the Hiawatha National Forest; (6) the Carp River Wilderness in the Hiawatha National Forest; (7) the Horseshoe Bay Wilderness in the Hiawatha National Forest; (8) the Delirium Wilderness in the Hiawatha National Forest; (9) the Government Island Wilderness in the Hiawatha National Forest; (10) the Round Island Wilderness in the Hiawatha National Forest; and (11) the McCormick Wilderness in the Ottawa National Forest.