| Lat / long: | 37.71695, -108.09093 |
| Primary: | Silver, Copper |
| Secondary: | Gold |
| Tertiary: | Lead, Tellurium, Bismuth |
| Ore: | Enargite, Gold, Pyrite |
| Gangue: | Kaolinite, Quartz |
| Discovery year: | 1879 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| First production started: | 1890 |
| Host rock: | Dolores Formation |
| Host type: | Sandstone |
| Associated rock: | Hornblende Latite Porphyry And Basalt;Calico Peak Porphyry |
| Associated type: | Latite,Basalt |
| Structure: | San Juan Uplift, Paradox Basin, Rico Dome, Calico Peak Stock, Calico Peak Anticline |
| Tectonic: | Central Cordillera (Southern Rocky Mtns) |
| Alteration processes: | Kaolinitization; Silicification; Shallow Bit Intense Near-Suface Oxidation Of Ores |
| MRDS | D010772 |
| DEP | 10014129 |
| Reference | {Deposit:: MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723.}{Deposit:: PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS MAP GQ-797.}{Deposit:: RANSOME, F.L., 1901, THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO: USGS 22D ANN. REPT., PT. 2, P. 357-358.}{Deposit:: COLORADO DIV. MINES INF. REPTS.}{Deposit:: BLM MINERAL SURVEYS MS 596, 7047}{Deposit:: MARRS, G.O., 1925, REPORT ON THE GOLD ANCHOR GROUP OF MINES, PIONEER MINING DISTRICT, DOLORES COUNTY, COLORADO: UNPUB. ENG. REPT., 8 P.} |
| Reporter | Schwochow, Stephen D. |