| Location: | Custer County, Colorado, United States, North America |
| Lat / long: | 38.11807, -105.37307 |
| dep_id: | 10012295 |
| mrds_id: | D007848 |
| Commodity type: | metallic |
| Major mineral: | Iron, Silver |
| Trace mineral: | Copper, Molybdenum, REE |
| Operation type: | Surface-Underground |
| Production size: | Small ammount of material produced |
| Development status: | Past Producer |
| ore: | Sphalerite, Apatite, Brochantite, Goethite, Hematite, Jarosite, Magnetite, Molybdenite, Powellite, Pyrite, Siderite, Tennantite |
| gangue: | Actinolite, Barite, Calcite, Chalcedony, Chlorite, Diopside, Phlogopite, Quartz, Ankerite |
| orebody_fm: | DIKE |
| work_type: | Underground |
| model: | {79: Porphyry Cu-Mo}{82: Epithermal veins} |
| alteration: | Weak Argillization, Hydrothermal Alteration With Silicification |
| ore_ctrl: | Fault, Volcanic Vent, Breccia Dike |
| Reporter: | Collins, Donna B. (King, Robert U.), Beach, Richard A. |
| hrock_type: | Trachyandesite,Andesite |
| arock_unit: | Bunker Trachyandesite |
| arock_type: | Trachyandesite,Andesite |
| Structure: | Rosita Volcanic Center, Wet Mtns, Several Small Faults, Ring Faults |
| tectonic: | Central Cordillera (Southern Rocky Mtns) |
| Year first produced: | 1880 |
| yr_lst_prd: | 1889 |
| disc_yr: | 1879 |
| References: |
- Deposit:: CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT. 2, P. 263-403.
- Deposit:: SHARP, W.M., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081.
- Deposit:: HILDEBRAND, F.A. AND CONKLIN, N.M., 1974, A BRECCIA DIKE CONTAINING RARE-EARTH-BEARING APATITE, MOLYBDENITE, AND MAGNETITE AT IRON HILL, CUSTER COUNTY, COLORADO: ECONOMIC GEOLOGY, V. 69, P. 508-515.
- Deposit:: KING, R.U., UNPUBLISHED DATA.
- Reserve-Resource:: Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.
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