| Location: | Custer County, South Dakota, United States, North America |
| Lat / long: | 43.72052, -103.60139 |
| dep_id: | 10012463 |
| mrds_id: | D008106 |
| Commodity type: | metallic and nonmetallic |
| Major mineral: | Mica |
| Minor mineral: | Beryllium, Feldspar |
| Operation type: | Unknown |
| Production size: | Small ammount of material produced |
| Development status: | Past Producer |
| ore: | Beryl, Feldspar, Muscovite |
| gangue: | Albite, Quartz |
| orebody_fm: | KNOBLIKE AND LENTICULAR |
| work_type: | Surface/Underground |
| ore_ctrl: | The Mica Is Found Near The Walls In A Border 1 Ft Thick. |
| Reporter: | Barari, Rachel A. |
| hrock_type: | Mica Schist |
| arock_type: | Gneiss,Pegmatite |
| Year first produced: | 1936 |
| disc_yr: | 1935 |
| discr: | S. T. Gamber |
| References: |
- Deposit:: U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707.
- Deposit:: USGS PP 247, P. 212-214.
- Production:: USGS PP 247, P. 214.
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