Keystone
Past ProducerCopperSurface-UndergroundUSGS MRDS
Location
| State | California |
| County | Del Norte |
| Coordinates | 41.98982, -123.95396 |
Commodities
| Primary | Copper |
Mine Details
| Status | Past Producer |
| Type | Surface-Underground |
| Data Source | USGS MRDS |
| Source ID | 10115127 |