| Location: | Dolores County, Colorado, United States, North America |
| Lat / long: | 37.71695, -108.09093 |
| dep_id: | 10014129 |
| mrds_id: | D010772 |
| Commodity type: | metallic |
| Major mineral: | Silver, Copper |
| Minor mineral: | Gold |
| Trace mineral: | Lead, Tellurium, Bismuth |
| Operation type: | Unknown |
| Production size: | Small ammount of material produced |
| Development status: | Past Producer |
| ore: | Enargite, Gold, Pyrite |
| gangue: | Kaolinite, Quartz |
| model: | 72: Polymetallic replacement |
| alteration: | Kaolinitization; Silicification; Shallow Bit Intense Near-Suface Oxidation Of Ores |
| conc_proc: | Enrichment Of Au Probably By Oxidation Of Auriferous Pyrite |
| ore_ctrl: | Fracture Intersection |
| Reporter: | Schwochow, Stephen D. |
| hrock_unit: | Dolores Formation |
| hrock_type: | Sandstone |
| arock_unit: | Hornblende Latite Porphyry And Basalt;Calico Peak Porphyry |
| arock_type: | Latite,Basalt |
| Structure: | San Juan Uplift, Paradox Basin, Rico Dome, Calico Peak Stock, Calico Peak Anticline |
| tectonic: | Central Cordillera (Southern Rocky Mtns) |
| Year first produced: | 1890 |
| disc_yr: | 1879 |
| discr: | W.L. Bull And Others (Johnny Bull Claimants) |
| References: |
- 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.
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