Helen
Past ProducerMercuryUSGS MRDS
Location
| State | California |
| County | Lake |
| Coordinates | 38.74099, -122.70107 |
Commodities
| Primary | Mercury |
Mine Details
| Status | Past Producer |
| Discovery Year | 1871 |
| Data Source | USGS MRDS |
| Source ID | 10040806 |
| State | California |
| County | Lake |
| Coordinates | 38.74099, -122.70107 |
| Primary | Mercury |
| Status | Past Producer |
| Discovery Year | 1871 |
| Data Source | USGS MRDS |
| Source ID | 10040806 |