Historical Marker
Gunn School
Historical marker location:
Holt, Michigan
( Marker is at the intersection of Washington Road and Holt Road, on the right when traveling south on Washington Road.)
Marker installed: 1992
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.