Mine detail: Columbus Mine

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Location: Ventura County, California, United States, North America
Lat / long: 34.78249, -119.06673
dep_id: 10141567
mrds_id: I003008
mas_id: 61110103
Commodity type: nonmetallic
Major mineral: Boron-Borates
Operation type: Underground
Development status: Past Producer
Reporter: Western Field Operations Center (WFOC)
References:
  • CALIF. DIV. MINES REPORT 28, 1932, P. 260.
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