Black Rock Claim
ProspectUSGS MRDS
Location
| State | California |
| County | Trinity |
| Coordinates | 40.64984, -123.45302 |
Commodities
| Tertiary | Manganese |
Mine Details
| Status | Prospect |
| Discovery Year | 1940 |
| Data Source | USGS MRDS |
| Source ID | 10190085 |
| State | California |
| County | Trinity |
| Coordinates | 40.64984, -123.45302 |
| Tertiary | Manganese |
| Status | Prospect |
| Discovery Year | 1940 |
| Data Source | USGS MRDS |
| Source ID | 10190085 |