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  3. Mineral Resource Data System (MRDS)

Mccurdy Mine

Past Producer in El Dorado county in California, United States with commodities Chromium, Iron
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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. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10284779
MAS/MILS ID 0060170398
Record type Site
Current site name Mccurdy Mine

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -120.89042, 38.8221 (WGS84)
Elevation 548
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

El Dorado(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Coloma(quadrangle 1:24,000 scale)

Placerville(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California El Dorado

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 011 N 010 E 08 NW California

Commodities

Commodity Importance
Chromium Critical Tertiary
Iron Tertiary

Materials information

Materials Type of material
Chromite Unknown
Serpentine Unknown
Talc Unknown

Nearby scientific data

Main Entrance (1) -120.89042, 38.8221
ListMap

Economic information

Ore body information

  • Strike N30E
    Dip 00E
    Thickness 0M
    Length 4.2M
    Width 1.2M
    Depth to top 0M
    Field Value
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 SHEAR ZONE
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 CARBONITIZATION
    Strike And Dip N30E:00E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 820823

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Gardn Vlly Area

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Rolland Armstrong
    Home office California
    Year 1976
  • Type Owner
    Owner G. O. Fisher-Operator Property During W. W. I
    Home office California
    Year 1976

Comments on the production information

  • ACCORDING TO TALIAFERRO,ABOUT 100 LONG TONS OF ORE SHIPPED BY 1918. THE AVERAGE MINEABLE GRADEOF CHROMITE IS 33.5 PERCENT ADDITIONAL 100 TONS OF ORE WAS SORTED & PILED,AND WAS PRESUM E SHIPPED OUT.TOTAL PRODUCTION PROBABLY IN THE NEIGHBORHOOD LONG TONS,BUT NO ACCURATE RECORD OF PRODUCTION EXISTS.RESERV SMALL. INSUFFICIENT DATA FOR MATRIX CALCULATIONS.

Reference information

Bibliographic references

  • Deposit

    CATER,F.W. ET AL,1951,CDM AND G BULL 134,PT.3,CHAP.4,P.155-1

  • Deposit

    DOM BULL 134 PT 3 CH 4 P 155-6 PL 8

Reporter information

Type Date Name Affiliation Comment
Reporter 22-MAY-1986 Hayashi U.S. Bureau of Mines

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.