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  3. Mineral Resource Data System (MRDS)

Lea - Grant

Past Producer in San Benito county in California, United States with commodity Mercury
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Production statistics
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10103830
MRDS ID M055823
Record type Site
Current site name Lea - Grant
Alternate or previous names Wild Turkey, Toothache, Juniper, Jupiter
Related records 10237181

Geographic coordinates

Geographic coordinates: -120.84099, 36.55966 (WGS84)
Elevation 427
Relative position 8 MI SE 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 01,02,11 California

Comments on the location information

  • 8 MI SE OF LLANADA

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Gypsum Gangue

Alteration

  • (Local) Induration Of Panoche

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) -120.84099, 36.55966
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Local Fracturing

Ore body information

  • General form IRREGULAR

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1940

Mining district

District name Central San Benito

Production statistics

  • Year 1962
    Period To 1962
    Material HG
    Accuracy Estimate
    Description Cp_Grade: ^16-20 Lb/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 569g/mt

Comments on the production information

  • INCLUDES TOOTHACHE, TURKEY HILL, WILD TURKEY MINES

Workings at the site

  • Type of workings Surface/Underground
    Length 304.8M
    Overall depth 30.48M

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.

External references

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.