Mine detail: Keystone Mine 188*

Previously called 'North Percha Camp: Patented In 1907 Keystone Claim'

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Location: Sierra County, New Mexico, United States, North America
Lat / long: 32.9765, -107.74421
dep_id: 10011706
mrds_id: D006805
Commodity type: metallic
Major mineral: Silver
Minor mineral: Gold, Lead, Copper
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Producer
ore: Anglesite, Argentite, Chalcopyrite, Chlorargyrite, Galena, Gold, Malachite
gangue: Quartz
orebody_fm: PINCH AND SWELL
work_type: Underground
conc_proc: Extensive Oxidation Enrichment
ore_ctrl: Mineralized Solutions Rose Along Faults And Localized In Fractures.
Reporter: Menzie, David
hrock_type: Granite
Structure: Major Faults Trend North And Minor Faults Trend Northwest To Southwest.
Year first produced: 1885
yr_lst_prd: 1936
disc_yr: 1885
References:
  • Deposit:: LINDGREN, W., GRATON, L.C. AND GORDON, C.H., 1910 USGS PP 68, P. 268-270
  • Deposit:: HARLEY, G.T., 1934 NMBMMR BULL 10, P. 98-105
  • Deposit:: HEDLUND, D.C., 1977 USGS MAP MF-900-B
  • Deposit:: NMBMMR GENERAL FILE DATA
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