| Lat / long: | 43.6869, -103.6075 |
| Primary: | Feldspar |
| Secondary: | Beryllium, Mica, Tantalum |
| Ore: | Beryl, Columbite, Feldspar, Mica, Tantalite |
| Gangue: | Quartz, Tourmaline |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| Host type: | Schist |
| Associated type: | Pegmatite |
| MRDS | SD02534 |
| DEP | 10055782 |
| Reference | {Deposit:: U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707, P. 158 - 159}{Production:: USBM CIRC 7707, P. 159} |
| Reporter | Barari, Rachel A. |