Duluth, MN Copper Mines
Copper Mines in Duluth, Minnesota
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Boulder Lake--North | Copper | |||
| Boulder Lake--South | Copper | |||
| Central Boulder Lake | Copper |
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Boulder Lake--North | Copper | |||
| Boulder Lake--South | Copper | |||
| Central Boulder Lake | Copper |