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Cerro Bonito

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. 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 10040927
MRDS ID M055818
Record type Site
Current site name Cerro Bonito
Alternate or previous names Mathews
Related records 10237379

Geographic coordinates

Geographic coordinates: -120.92322, 36.57438 (WGS84)
Elevation 914
Relative position 2 MI S 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

Llanada(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 015S;016S 010E;010E 31;06 California

Comments on the location information

  • 2 MI S OF LLANADA

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore

Alteration

  • (Local) Silica Carbonate Alteration Of Serpentine

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -120.92322, 36.57438
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Serpentine - Sandstone Contact

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 1873
Production years 1873 - 1876, 1902

Mining district

District name Central San Benito

Ownership information

  • Type Owner
    Owner Mrs. Thomas Flint

Production statistics

  • Year 1960
    Period To 1960
    Material HG
    Accuracy Estimate
    Description Cp_Grade: ^10-20 Lb/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 6776g/mt

Workings at the site

  • Type of workings Surface/Underground
    Length 609.6M

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

  • Deposit

    BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.

  • Deposit

    5) FORSTNER, W., 1908, QUICKSILVER RESOURCES OF CALIFORNIA: CDMG BULL. 27, 270 P.

  • Deposit

    6) RANSOME, A.L., AND KELLOGG, J.L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG, V. 35, P. 353-486

  • Deposit

    7) YATES, R.G. AND HILPERT, L.S., 1945, QUICKSILVER DEPOSITS OF CENTRAL SAN BENITO AND NORTHWESTERN FRESNO COUNTIES, CALIF.: CJMG, V. 41, P. 11-35

  • 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.