| Lat / long: | 43.85526, -103.62617 |
| Tertiary: | Niobium (Columbium), Tantalum |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| MAS | 460330023 |
| DEP | 10129453 |
| Reference | {Deposit:: FISHER D J PEGMATITES OF THE CUSTER DISTRICT S DAKOTA GEOL S}{Deposit:: EPT INVES NO 44 1942 PP 17-4}{Deposit:: PAGE LINCOLN R ET AL PEGMATITE INVESTIGATIONS 1942-45 BLACK}{Deposit:: DAKOTA U S GEO SURV PROF PAPER 247 P 58,131 P121}{Deposit:: REDDEN J A GEOLOGY OF THE BERNE QUADRANGLE BLACK HILLS S DAK}{Deposit:: GEOL SURV BULL 1015-C 1955 P 40} |
| Reporter | South Dakota School of Mines |