Historical Marker
Redbud Grove
Historical marker location:
1000 Canal St, Ann Arbor, Michigan
( Memorial is at the intersection of Canal Street and Wall Street, on the right when traveling east on Canal Street.)
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.