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  3. Mineral Resource Data System (MRDS)

Sunset I Group

Past Producer in Mariposa county in California, United States with commodities Gold, Silver
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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. Ownership information
  13. Production statistics
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10030913
MRDS ID M009401
Record type Site
Current site name Sunset I Group
Alternate or previous names Trujillo
Related records 10188436

Geographic coordinates

Geographic coordinates: -120.1596, 37.55382 (WGS84)
Elevation 762
Relative position HEADWATERS BURNS CK 5.5 MI NE HORNITOS

Site location context

Political divisions (FIPS codes)

Mariposa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hornitos(quadrangle 1:24,000 scale)

Oakdale(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 004S 016E 25 California

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -120.1596, 37.55382
ListMap

Economic information

Ore body information

  • General form POCKET
    Depth to top 0M

Comments on the geologic information

  • AMADOR GROUP

Economic information about the deposit and operations

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

Ownership information

  • Type Operator
    Owner Trujillo, Robert J.

Production statistics

  • Year 1939
    Period 1910 - 1939
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^984 Oz Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 27280g

Comments on the production information

  • ORE AVERAGED $27.00/TON

Reference information

Bibliographic references

  • Deposit

    BOWEN, O. E., JR., GRAY, C. H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 53 , NOS. 1 AND 2 , P. 309

  • Production

    BOWEN & GRAY 1957

General comments

Subject category Comment text
Deposit VEIN
Deposit UNPATENTED SUNSET, SO. SUNSET EXT., LA VENUE & NACIMIENTO DEL ORO ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1979 Bowman, J. And 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.