Philadelphia County, PA Tungsten Mines
Tungsten Mines in Philadelphia County, PA
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Hoffman's Quarry | Tungsten | |||
| Hoffmans Quarry | Tungsten |
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Hoffman's Quarry | Tungsten | |||
| Hoffmans Quarry | Tungsten |