Keystone
Past ProducerCopperUSGS MRDS
Location
| State | California |
| County | Del Norte |
| Coordinates | 41.99288, -123.96394 |
Commodities
| Primary | Copper |
| Tertiary | Iron |
Mine Details
| Status | Past Producer |
| Data Source | USGS MRDS |
| Source ID | 10029762 |
| State | California |
| County | Del Norte |
| Coordinates | 41.99288, -123.96394 |
| Primary | Copper |
| Tertiary | Iron |
| Status | Past Producer |
| Data Source | USGS MRDS |
| Source ID | 10029762 |