| Lat / long: | 44.13635, -104.5375 |
| Primary: | Bentonite |
| Operation type: | Unknown |
| Development status: | Occurrence |
| MAS | 560450139 |
| DEP | 10181872 |
| Reference | {Deposit:: LOCATED THREE MILES NW OF UPTON}{Deposit:: WYO GEOL SURV OPEN FILES} |
| Reporter | South Dakota School of Mines |