| Lat / long: | 43.68885, -103.71946 |
| Primary: | Beryllium |
| Secondary: | Mica, Feldspar |
| Ore: | Albite, Beryl, Muscovite |
| Gangue: | Quartz, Tourmaline |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| Host type: | Schist,Pegmatite |
| Associated type: | Pegmatite |
| MRDS | SD02514 |
| DEP | 10055769 |
| Reference | {Deposit:: U. S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707, P. 198}{Deposit:: USGS PP 247, P. 157.}{Production:: USGS PP 247., P. 157; USBM INFO CIRC 7707, P. 198} |
| Reporter | Barari, Rachel A. |