Mine detail: Gold Anchor Mine

Previously called 'Patented Claims: Johnny Bull, MS 596Legal Tender, MS 1838Spanking Jack, MS 7047Last Chance, MS 7047Unpatented Claims: Gold AnchorGold Anchor ExtensionLast EffortCaledoniaRainbowAlbionPrimroseCambiaInspirationOwlOwl Nos.1-4'

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Location: Dolores County, Colorado, United States, North America
Lat / long: 37.71529, -108.08815
dep_id: 10014126
mrds_id: D010769
Commodity type: metallic
Major mineral: Copper, Silver
Minor mineral: Zinc, Gold, Lead
Trace mineral: Molybdenum
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Galena, Molybdenite, Sphalerite
gangue: Kaolinite, Quartz
model: 72: Polymetallic replacement
alteration: Shallow But Intense Near-Surface Oxidation Of Ores
conc_proc: Enrichment Of Au Probably By Oxidation Of Auriferous Pyrite
Reporter: Schwochow, Stephen D.
hrock_unit: Cutler 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
yr_lst_prd: 1937
disc_yr: 1879
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. 358.
  • Deposit:: COLORADO DIV. MINES INF. REPTS.
  • Deposit:: BLM MINERAL SURVEYS MS 596, 1838, 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.
  • Production:: COLORADO DIV. MINES ANNUAL OPERATOR REPTS.
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