| Lat / long: | 38.10362, -105.33307 |
| Primary: | Silver |
| Secondary: | Lead, Copper |
| Ore: | Chalcopyrite, Galena, Pyrite, Silver, Stephanite, Tetrahedrite |
| Gangue: | Barite, Calcite, Clay |
| Discovery year: | 1874 |
| Operation type: | Underground |
| Production size: | Small |
| Development status: | Past Producer |
| First production started: | 1874 |
| Host rock: | San Isabel Granite Of Boyer Found On Fifth And Eighth Level Of Mine On Ne Hanging Wall |
| Host type: | Volcanic Breccia (Agglomerate),Andesite |
| Associated rock: | Rosita Andesite;Game Ridge Trachyte |
| Associated type: | Trachyte,Andesite |
| Structure: | Rosita Volcanic Center, Wet Mtns, Rosita Fault |
| Tectonic: | Central Cordillera (Southern Rocky Mtns) |
| Alteration processes: | Argillized |
| MRDS | D008062 |
| DEP | 10012434 |
| Reference | {Deposit:: CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403.}{Deposit:: EMMONS, S.F., 1896, THE MINES OF CUSTER COUNTY, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 405-472}{Deposit:: SHARP, W.N., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081, 1:24,000.}{Reserve-Resource:: Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.} |
| Reporter | Collins, Donna B., Intermountain Field Operations Center (IFOC), Beach, Richard A. |