Dewhirst Mine
Past ProducerSurfaceUSGS MRDS
Location
| State | California |
| County | Alameda |
| Coordinates | 37.56911, -121.62133 |
Commodities
| Tertiary | Manganese, Silica |
Mine Details
| Status | Past Producer |
| Type | Surface |
| First Production | 1915 |
| Data Source | USGS MRDS |
| Source ID | 10186918 |