| Lat / long: | 43.82916, -103.65887 |
| Tertiary: | Niobium (Columbium), Tantalum |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| MAS | 460330029 |
| DEP | 10299522 |
| Reference | {Deposit:: PAGE LINCOLN R ET AL PEGMATITE INVESTIGATIONS 1942-45 BLACK}{Deposit:: DAKOTA U S GEOLOGICAL SURVEY PROF PAPER 247 1953 P58}{Deposit:: REDDEN JACK A GEOLOGYOF THE BERNE QUADRANGLE BLACK HILLS S D}{Deposit:: S GEOL SURV PRO PAPER 297-F 1968 PP 343-408} |
| Reporter | South Dakota School of Mines |