Mine detail: Preston Gold Mine

Previously called 'BismuthChlorideMotherMajorDr. EmmaJudge'

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Location: Custer County, Colorado, United States, North America
Lat / long: 38.1514, -105.4514
dep_id: 10012432
mrds_id: D008059
Commodity type: metallic
Major mineral: Silver, Gold
Operation type: Underground
Production size: Small ammount of material produced
Development status: Past Producer
ore: Argentite
gangue: Illite, Quartz
orebody_fm: Breccia Pipe
work_type: Underground
alteration: Strongly Argillized
ore_ctrl: Concentric Faults And Fractures
Reporter: Collins, Donna L.
hrock_type: Volcanic Breccia (Agglomerate),Rhyolite
Structure: Rosita Volcanic Center, Wet Mtns, Concentric Faults And Fractures
tectonic: Central Cordillera (Southern Rocky Mtns)
Year first produced: 1903
yr_lst_prd: 1907
disc_yr: 1902
References:
  • Deposit:: SHARP, W.N., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081, 1:24,000.
  • Deposit:: COLORADO DIVISION MINES, 1981, INSPECTION RECORDS
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