Ponca Group
Past ProducerFeldspar, Mica, BerylliumUSGS MRDS
Location
| State | South Dakota |
| County | Pennington |
| Coordinates | 43.87690, -103.37112 |
Commodities
| Primary | Feldspar, Mica, Beryllium |
Mine Details
| Status | Past Producer |
| Discovery Year | 1898 |
| Data Source | USGS MRDS |
| Source ID | 10055639 |