| Lat / long: | 39.25533, -77.15638 |
| Tertiary: | Aluminum, Calcium, Chromium, Iron, Magnesite, Silica |
| Operation type: | Underground |
| Development status: | Past Producer |
| MAS | 240310001 |
| DEP | 10243171 |
| Reference | PEARRE N HEYL A JR USGS BULL 1082K PG 755 1960 |
| Reporter | Harrison |