Pleasanton, CA Manganese Mines
Manganese Mines in Pleasanton, California
| Mine |
Owner |
Land Status |
Work Type |
Minerals |
| Homestead Deposit |
|
|
|
Manganese |
| Isler Mountain |
|
|
|
Manganese |
| Mt. Hamilton Deposit |
|
|
|
Manganese |
| Overacker Mine |
|
|
|
Manganese |
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