• 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 of a copper ingot

Smelting is the process of heating processed copper ore to the melting point so that it can then be cast into ingots.