| Lat / long: | 43.78107, -103.59862 |
| Primary: | Mica |
| Tertiary: | Beryllium |
| Ore: | Beryl, Muscovite |
| Gangue: | Albite, Microcline, Quartz |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| Host rock: | Schist |
| Host type: | Schist |
| Associated rock: | Pegmatite |
| Associated type: | Pegmatite |
| MRDS | SD02312 |
| DEP | 10104260 |
| Reference | {Deposit:: U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 770}{Production:: U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707} |
| Reporter | Barari, Rachel A. |