| Lat / long: | 43.8769, -103.37112 |
| Primary: | Feldspar, Mica, Beryllium |
| Ore: | Beryl, Microcline, Muscovite |
| Gangue: | Quartz, Tourmaline |
| Orebody form: | DIKE |
| Discovery year: | 1898 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| Host type: | Pegmatite |
| Associated rock: | Pegmatite |
| Associated type: | Pegmatite |
| MRDS | SD02243 |
| DEP | 10055639 |
| 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. |