| Lat / long: | 44.08135, -103.72724 |
| Primary: | Graphite |
| Ore: | Graphite |
| Operation type: | Unknown |
| Deposit type: | Vein |
| Production size: | None |
| Development status: | Occurrence |
| Host rock: | Flag Rock Formation (Schist) |
| Host type: | Schist |
| Structure: | Graphitic Zones Are Conformable To The Orginal Sediment Beds But Now Lie At Steep Angles Due To Intense Folding |
| MRDS | SD02228 |
| DEP | 10055627 |
| Reference | U.S. Bureau Of Mines, 1954, Black Hills Mineral Atlas, South Dakota: Part I, Bureau Of Mines Information Circular 7688 |
| Reporter | Barari, Rachel A. |