| Lat / long: | 44.85743, -108.14183 |
| Primary: | Pumice |
| Operation type: | Unknown |
| Development status: | Occurrence |
| MAS | 560030277 |
| DEP | 10254823 |
| Reference | {Deposit:: EXPOSED IN TWO SMALL PITS ABOUT 100 YARDS APART. 20FT THICK}{Deposit:: IN LARGER PIT}{Deposit:: WYO GEOL SURV BULL 50 1966 P 155} |
| Reporter | South Dakota School of Mines |