| Lat / long: | 44.47776, -103.87528 |
| Primary: | Flagstone |
| Operation type: | Surface |
| Development status: | Past Producer |
| MAS | 460810228 |
| DEP | 10274839 |
| Reference | US BUREAU OF MINES STAFF,1954,REG V,1 INFO CIRCULAR 7688 P 5 |
| Reporter | Intermountain Field Operations Center (IFOC) |