Becoming Clarkston

Historical marker location:

Clarkston, Michigan

( Marker is at the intersection of North Main Street (State Highway 15) and West Washington Street, on the right when traveling south on North Main Street.)

It Started with the Mill.

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.