Gratiot Lake Project
ProspectCopperUndergroundUSGS MRDS
Location
| State | Michigan |
| County | Keweenaw |
| Coordinates | 47.35806, -88.18643 |
Commodities
| Primary | Copper |
Mine Details
| Status | Prospect |
| Type | Underground |
| Deposit Type | Fissure Copper Veins |
| First Production | 1853 |
| Data Source | USGS MRDS |
| Source ID | 10310107 |