Region
Michigan
Sleeping Bear Dunes National Lakeshore
31
Sleeping Bear Dunes National Lakeshore (Mich.)
31
Isle Royale National Park
4
Isle Royale National Park (Mich.)
4
Pictured Rocks National Lakeshore
4
Isle Royale
3
Pictured Rocks National Lakeshore (Mich.)
3
Keweenaw National Historical Park (Mich.)
2
North Manitou Island
2
North Manitou Island (Mich.)
2
Portage Lake Volcanics (Mich.)
2
United States
2
Apostle Islands National Lakeshore
1
Copper Harbor Conglomerate (Mich.)
1
Glen Haven Region
1
Indiana
1
Indiana Dunes National Lakeshore
1
Keweenaw County (Mich.)
1
Michigan, Lake
1
River Raisin Battlefield and Massacre Site (Mich.)
1
Wisconsin
1