| Lat / long: | 43.86576, -103.40726 |
| Tertiary: | Niobium (Columbium), Tantalum |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| MAS | 461030078 |
| DEP | 10202375 |
| Reference | USBM STAFF,1955,REG V,IC 7707 P 69 |
| Reporter | South Dakota School of Mines |