Mine: Delaware Mine, Delaware, MI
Began → Delaware Mine → Became
Produced: Copper Ore
Method: Mine shafts.
Lifetime Production: 8 million pounds of copper.
Located off U.S. 41 in Grant Township, Keweenaw County. This is 12 miles south of Copper Harbor.
The mine had five shafts, the deepest reaching 1,400 feet.
The mine is open in the summer for tours.