| Lat / long: | 43.75802, -103.6414 |
| Primary: | Mica |
| Secondary: | Beryllium |
| Ore: | Beryl, Biotite, Muscovite |
| Gangue: | Microcline, Plagioclase, Quartz, Tourmaline |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| Host type: | Schist |
| Associated type: | Pegmatite |
| Structure: | Schist Inclusions, Associated With Quartz Masses, Cut The Pegmatite Diagonally |
| Alteration processes: | Air Stained |
| MRDS | SD02526 |
| DEP | 10055776 |
| Reference | {Deposit:: USBM INFO CIRC 7707, P. 118.}{Deposit:: USGS PP 247, P. 100.} |
| Reporter | Barari, Rachel A. |