| Lat / long: | 43.85079, -103.39362 |
| Primary: | Feldspar, Beryllium, Mica |
| Ore: | Beryl, Biotite, Feldspar, Microcline, Muscovite |
| Gangue: | Tourmaline |
| Operation type: | Unknown |
| Production size: | None |
| Development status: | Occurrence |
| Host type: | Pegmatite |
| Associated rock: | Pegmatite;Graphitic Granite |
| Associated type: | Granite |
| MRDS | SD02250 |
| DEP | 10055645 |
| Reference | U. S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 770 |
| Reporter | Barari, Rachel A. |