Michigan · Keweenaw County
Past Producer

Cliff Mining Co.

Keweenaw County, Michigan, United States
Copper
⌖ Show on mapUSGS source ↗
Commodities
PrimaryCopper
Commodity typeM
Economic & production
Development statusPast Producer
Identification
Deposit ID10122105
RegionNA
Data scoreD
Coordinates47.3889, -88.30834
References
THE MINE PROD.WAS CUT BACK BECAUSE THE COPPER WASOF A VERY FINE QUALITY,NOT GOOD FOR COMMERCIAL USEALLEN,R.C.MINERAL RESOURCES OF MICH.MICH.GEOL.ANDBIOL.SURV.PUBL.21,1916 PP 25