Platt's General Store

Historical marker location:

228 South Ridge Street, Port Sanilac, Michigan

( Marker can be reached from South Ridge Street (State Highway 25) ½ mile south of Main Street (State Highway 46).)

The Upper Peninsula of Michigan was once a major center for copper mining. The Keweenaw Peninsula was home to the largest concentration of copper mines in the world in the mid-19th century, and copper was an important natural resource for the state's economy.