| Lat / long: | 38.9047, -104.88526 |
| Primary: | Silica |
| Tertiary: | Quartz |
| Operation type: | Underground |
| Development status: | Past Producer |
| MRDS | D004940 |
| MAS | 80410264 |
| DEP | 10166605 |
| Reference | {Deposit:: REF: 1974 MINOBRAS}{Deposit:: COLO DIV MINES SUMM OF MIN IND ACT1969} |
| Reporter | Intermountain Field Operations Center (IFOC) |