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Doss

Past Producer in Mariposa county in California, United States with commodities Gold, Lead, Copper, Zinc
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Production statistics
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10030942
MRDS ID M009446
Record type Site
Current site name Doss
Alternate or previous names Doss and Thorne, Ginaca, Brooks
Related records 10212518

Geographic coordinates

Geographic coordinates: -120.21682, 37.47576 (WGS84)
Relative position 6 1/2 MI. NW OF CATHEY'S VALLEY

Site location context

Political divisions (FIPS codes)

Mariposa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Indian Gulch(quadrangle 1:24,000 scale)

Merced(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Fresno River(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Mariposa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 005S 016E 21,28 California

Commodities

Commodity Importance
Gold Primary
Lead Tertiary
Copper Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Sphalerite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)

Nearby scientific data

(1) -120.21682, 37.47576
ListMap

Economic information

Ore body information

  • General form PINCH AND SWELL
    Strike N 42 SE
    Dip 5 SSE
    Thickness 6.71M

Comments on the geologic information

  • GEOL.DESC: WALL ROCKS ARE SLATY AND SCHISTOSE VOLCANICS. VEIN AVE. 8 - 10 FT. THICK.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1870
Production years 1929 , 1933 - 1938

Mining district

District name Whitlock

Ownership information

  • Type Operator
    Owner Frank Trabucco Jr.

Production statistics

  • Year 1929
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^1 Oz/Ton Au: 2 Oz/Ton Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 28g/mt
    Minor Ore Silver Silver 56g/mt
  • Year 1938
    Period - 1938
    Material AU
    Accuracy Accurate
    Description Cp_Grade: ^ .09 Oz/Ton Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Silver Silver 3g/mt
  • Year 1938
    Period - 1938
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^.2 Oz/Ton Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 6g/mt

Comments on the production information

  • DURING EARLIEST HISTORY ONE LOT OF 200 TONS OF ORE RAN $17/TON AND ANOTHER 400 TONS YIELDED BETWEEN $10 - $11/TON PLUS A SULFIDE CONCENTRATE ASSAYING $24/TON. 677.25 OZ GOLD RECOVERED FROM UNKNOWN TONNAGE IN 1897 . TOTAL RECORDED PRODUCTION IS APPROX. $94,000 .

Workings at the site

  • Type of workings Unknown
    Area 7.394HA
    Overall depth 76.2M

Comments on the workings information

  • 250-FT. (VERTICAL DEPTH) INCLINED SHAFT, 400-FT. SHAFT, 540-FT. ADIT.

Reference information

Bibliographic references

  • Deposit

    BOWEN, O. E., JR., & GRAY, H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIF.: CALIF. JOUR. MINES & GEOL., VOL. 53 , NOS. 1 & 2 , P. 95 - 6 , 255

  • Production

    BOWEN AND GRAY, 1957

General comments

Subject category Comment text
Deposit VEIN, ORE SHOOTS
Deposit TWO PATENTED FRACTIONAL CLAIMS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-DEC-1978 Hayden, F. (Albers, J.) 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.