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Pacific Coast Mill & Mining Company.

Past Producer in San Bernardino county in California, United States with commodities Gold, Silver, Copper
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Land status
  11. Production statistics
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10035621
MRDS ID M023472
Record type Site
Current site name Pacific Coast Mill & Mining Company.
Alternate or previous names Barstow Metals Extraction Co.
Related records 10262067

Geographic coordinates

Geographic coordinates: -117.0392, 34.89779 (WGS84)
Elevation 686
Relative position JUST SW B HILL

Site location context

Political divisions (FIPS codes)

San Bernardino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Barstow(quadrangle 1:24,000 scale)

Victorville(quadrangle 1:100,000 scale)

San Bernardino(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Mojave(hydrologic unit)

Northern Mojave(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California San Bernardino

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 009N 002W 01 California

Comments on the location information

  • UTM EST. CENTER OF SEC.

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Copper Secondary

Materials information

Materials Type of material
Gold Ore
Copper Gangue
Quartz Gangue

Nearby scientific data

(1) -117.0392, 34.89779
ListMap

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Land status

Ownership category Private

Production statistics

  • Year 1910
    Period 1904-1910
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^Free Milling Of 75,000 Tons Of Tailings Assay 0.7% Cu, 0.14 Oz. Au/Ton And 1-1.5 Oz. Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 35g/mt
    Major Ore Gold Gold 4g/mt
    Minor Ore Copper Copper 1wt-pct
  • Year 1951
    Material CON
    Accuracy Estimate
    Description Ap_Grade: ^Flotation Milling Avg. 10% Cu, 2.6-2.8 Oz. Au/Ton And 20 Oz. Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Silver Silver 565g/mt
    Minor Conc. Copper Copper 10wt-pct
    Major Gold Gold 76g/mt

Comments on the production information

  • NO OTHER PRODUCTION RECORD FOUND

Comments on the workings information

  • FLOTATION PLANT INSTALLED IN 1951. PREVIOUS TO THAT, ORE WAS RECOVERED BY FREE-MILLING AND CYANIDATION.

Reference information

Bibliographic references

  • Deposit

    WRIGHT, L.A. AND OTHERS, 1953, MINES AND MINERAL DEPOSITS OF SAN BERNARDINO COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 49, NOS. 1 & 2, P. 78

  • Production

    WRIGHT (1953)

General comments

Subject category Comment text
Deposit BAGDAD-CHASE MINING CO. OPERATED A MILL ON THIS SITE FROM 1904-1910. THERE IS NO DEPOSIT LOCATED HERE. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1979 Nelson, Scott C. (Albers, John, P.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.