| Lat / long: | 38.10779, -105.34807 |
| Primary: | Silver, Copper |
| Secondary: | Lead, Iron |
| Ore: | Chalcopyrite, Covellite, Galena, Malachite, Pyrite, Silver, Stephanite, Tetrahedrite |
| Gangue: | Barite, Calcite, Clay |
| Discovery year: | 1895 |
| Operation type: | Underground |
| Production size: | None |
| Development status: | Past Producer |
| Host type: | Andesite |
| Associated rock: | Rosita Andesite |
| Associated type: | Andesite |
| Structure: | Rosita Cauldron And Crater Complex, North-Trending Fissures Dipping 60 To 70 Degrees East; Trachyte Dike Nearby |
| Tectonic: | Wet Mountains |
| Alteration processes: | Weakly Argillized, Strongly Argillized In Places |
| MRDS | D007664 |
| DEP | 10012192 |
| Reference | {Deposit:: CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403.}{Deposit:: SIEMS, P.L., 1967, VOLCANIC AND ECONOMIC GEOLOGY OF THE ROSITA HILLS AND SILVER CLIFF DISTRICTS, CUSTER COUNTY, COLORADO: COLORADO SCHOOL MINES, D.SC THESIS, T1042, 222 P.}{Deposit:: SHARP, W.M., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAPS I-1081.}{Reserve-Resource:: Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.} |
| Reporter | Collins, Donna B., Beach, Richard A. |