| Location: | Pennington County, South Dakota, United States, North America |
| Lat / long: | 44.08135, -103.72724 |
| dep_id: | 10055627 |
| mrds_id: | SD02228 |
| Commodity type: | nonmetallic |
| Major mineral: | Graphite |
| Operation type: | Unknown |
| Deposit type: | Vein |
| Production size: | No production occurred |
| Development status: | Occurrence |
| ore: | Graphite |
| conc_proc: | Graphitic Zones Apparently Represent Organic Matter In The Original Sedimentary Rocks |
| ore_ctrl: | Vein Strikes N 10 W, Dips 75 Ne |
| Reporter: | Barari, Rachel A. |
| hrock_unit: | Flag Rock Formation (Schist) |
| hrock_type: | Schist |
| Structure: | Graphitic Zones Are Conformable To The Orginal Sediment Beds But Now Lie At Steep Angles Due To Intense Folding |
| References: |
- U.S. Bureau Of Mines, 1954, Black Hills Mineral Atlas, South Dakota: Part I, Bureau Of Mines Information Circular 7688
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