Big Thom No 1
Past ProducerMicaSurfaceUSGS MRDS
Location
| State | South Dakota |
| County | Custer |
| Coordinates | 43.71806, -103.69947 |
Commodities
| Primary | Mica |
| Tertiary | Beryllium, Feldspar |
Mine Details
| Status | Past Producer |
| Type | Surface |
| Data Source | USGS MRDS |
| Source ID | 10274985 |