| Lat / long: | 43.52633, -109.33965 |
| Primary: | Pumice |
| Operation type: | Unknown |
| Development status: | Occurrence |
| MAS | 560131189 |
| DEP | 10157687 |
| Reference | {Deposit:: VOLCANIC ASH BED 2-7 FT OVERLAIN BY 10-30 FT SAND & GRAVEL}{Deposit:: CAPPING BUTTE. ASH QUITE PURE- MAY BE SUITABLE FOR LIGHT}{Deposit:: WEIGHT AGGREGATE MATERIAL}{Deposit:: WYO GEOL SURV BULL 50 1966 P237} |
| Reporter | South Dakota School of Mines and Technology HJB |