| Lat / long: | 43.86686, -103.59616 |
| Tertiary: | Mica, Tin, Beryllium, Feldspar, Lithium |
| Other material: | Alabandite, Amblygonite, Beryl, Cassiterite, Columbite, Feldspar, Muscovite, Quartz, Tantalite |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| MAS | 461030033 |
| DEP | 10299041 |
| Reference | {Deposit:: HESS, FRANK L, 1909, TIN, TUNGSTEN AND TANTALUM DEPOSITS OF}{Deposit:: DAKOTA. USGS BULL 380, P 141.}{Deposit:: PAGE, LINCOLN R, ET AL, 1953, PEGMATITE INVESTIGATIONS, 1942}{Deposit:: BLACK HILLS, SOUTH DAKOTA. USGS PROF PAPER 247. P 201-3.} |
| Reporter | Hite, Alan G. |