Armstrong No. 2 Mine
Past ProducerSurface-UndergroundUSGS MRDS
Location
| State | California |
| County | Trinity |
| Coordinates | 40.18845, -123.30501 |
Commodities
| Tertiary | Calcium, Copper, Iron, Manganese, Silica |
Mine Details
| Status | Past Producer |
| Type | Surface-Underground |
| First Production | 1954 |
| Discovery Year | 1941 |
| Data Source | USGS MRDS |
| Source ID | 10216144 |