Mass copper mine
E2180819
UNEXPLORED
The Mass copper mine was a historic copper mining operation in Michigan’s Upper Peninsula that played a significant role in the region’s early mining industry and gave its name to the nearby community of Mass City.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mass copper mine canonical | 1 |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.