Harnessing Nature's Energy

Historical marker location:

1 Fair Lane Drive, Dearborn, Michigan

( Marker can be reached from Fair Lane Drive, 0.3 miles west of Evergreen Road.)

Michigan is the only state to have two designated "state stones": the Petoskey Stone, which is the state stone of Michigan, and the Isle Royale Greenstone, which is the state gemstone of Michigan. The Petoskey Stone is a fossilized coral that is found primarily in the northern Lower Peninsula, while the Isle Royale Greenstone is a rare mineral found only on Isle Royale in Lake Superior.