Gratiot Copper Mine
Past ProducerCopperUndergroundUSGS MRDS
Location
| State | Michigan |
| County | Keweenaw |
| Coordinates | 47.31470, -88.34504 |
Commodities
| Primary | Copper |
| Tertiary | Silver |
Mine Details
| Status | Past Producer |
| Type | Underground |
| Data Source | USGS MRDS |
| Source ID | 10267743 |