| Lat / long: | 43.92776, -103.59777 |
| Tertiary: | Beryllium, Tin, Mica |
| Other material: | Beryl, Cassiterite, Muscovite, Quartz |
| Discovery year: | 1884 |
| Operation type: | Underground |
| Development status: | Past Producer |
| First production started: | 1884 |
| MAS | 461030010 |
| DEP | 10177586 |
| Reference | {Deposit:: BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA, PT 2. 1955, USBM IC}{Deposit:: P 55.}{Deposit:: GARDNER, E D, 1939, TIN DEPOSITS OF THE BLACK HILLS, SOUTH D}{Deposit:: USBM IC 7069, P 16-22.}{Deposit:: PAGE, LINCOLN R, ET AL, 1953, PEGMATITE INVESTIGATIONS, 1942}{Deposit:: USGS PROF PAPER 247, P 91-4.}{Deposit:: COWBOY TIN MINE, 1945, WAR MINERALS REPORT 377, 7PP.} |
| Reporter | Hite, Alan G. |