| Lat / long: | 43.61468, -103.54556 |
| Primary: | Beryllium, Tantalum, Feldspar, Mica |
| Tertiary: | Lithium |
| Ore: | Beryl, Muscovite, Plagioclase, Spodumene |
| Gangue: | Cleavelandite, Quartz, Tourmaline |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| Host type: | Pegmatite |
| Associated type: | Pegmatite |
| MRDS | D008138 |
| DEP | 10097817 |
| Reference | U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707 |
| Reporter | Barari, Rachel A. |