Treasure Hunting in Michigan

Great Lakes shipwreck shoreline, copper-country mining caches, and lumber-era boom-town sites.

Top Michigan treasure regions: Keweenaw copper district; Lake Superior shoreline; Mackinac region; Saginaw Bay.

Famous documented cases in Michigan: Lost Pewabic copper cargo; Lumberman caches (Roscommon); Mackinac fur-trade silver.

Terrain in Michigan: Glaciated lake plain, copper country bedrock, and northern forest.

Best seasons for field work in Michigan: May–October.

Michigan state parks are managed by Michigan Department of Natural Resources (undefined); check its rules before detecting in any state park.