1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

El Cajon

Past Producer in San Benito county in California, United States with commodity Mercury
Map
XML
JSON
KML
C
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. Alteration
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Production statistics
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10040929
MRDS ID M055821
Record type Site
Current site name El Cajon
Alternate or previous names Gough, Mathews
Related records 10189153

Geographic coordinates

Geographic coordinates: -120.86738, 36.56688 (WGS84)
Elevation 610
Relative position 9 MI SW OF LLANADA

Site location context

Political divisions (FIPS codes)

San Benito(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Panoche(quadrangle 1:24,000 scale)

Mendota(quadrangle 1:100,000 scale)

Monterey(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Panoche-San Luis Reservoir(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California San Benito

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 016S 010E 03 California

Comments on the location information

  • LOCATED TO CENTER OF SECTION

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Chalcedony Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Induration Of Sandstone , Hydrothermal Alteration

Nearby scientific data

(1) -120.86738, 36.56688
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Nw Trending - Ne Dipping Fault Zone

Ore body information

  • General form IRREGULAR

Controls for ore emplacement

  • Nw Trending - Ne Dipping Fault Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1955
Year of first production 1955
Production years 1956 - 1957

Mining district

District name Central San Benito

Ownership information

  • Type Owner
    Owner Edward A., Everettj., Edward S., And James D. Matthews

Production statistics

  • Year 1962
    Period To 1962
    Material HG
    Accuracy Estimate
    Description Cp_Grade: ^12-15 Lb/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 6551g/mt

Workings at the site

  • Type of workings Surface
    Overall length 91.44M
    Overall width 60.96M

Reference information

Bibliographic references

  • Deposit

    BAILEY, E. H., U.S.G.S., PERSONAL FILES

  • Deposit

    AVERILL, C. V., 1947, MINES AND MINERAL RESOURCES OF SAN BENITO COUNTY, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 43, P. 41 - 60

  • Deposit

    HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252

  • Production

    USBM DATA

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1976 Peterson, Jocelyn A. 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.