• Underground Tamarack Trammer Car

    Keweenaw

    National Historical Park Michigan

Calumet Unit Map

Map of Calumet Unit. Click here to download a higher resolution version.
Click on map to download a higher resolution adobe pdf version.

Did You Know?

Photo: Float copper on exhibit in Calumet

During the ice ages, glaciers ripped chunks of copper away from exposed rock outcrops and then carried the copper sometimes long distances before depositing them. These loose pieces are referred to as float copper.