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  3. Mineral Resource Data System (MRDS)

Morning Star

Past Producer in Mariposa county in California, United States with commodity Gold
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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. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10030904
MRDS ID M009389
Record type Site
Current site name Morning Star
Related records 10188428

Geographic coordinates

Geographic coordinates: -120.16349, 37.59964 (WGS84)
Elevation 792

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)

Upper Merced(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States California Mariposa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 004S 016E 11,12 California

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -120.16349, 37.59964
ListMap

Economic information

Ore body information

  • Strike NW
    Dip 70 NE
    Thickness 2.74M
    Depth to top 0M

Comments on the geologic information

  • GEOL.DESC: AMADOR GROUP

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1882
Production years 1909 ,

Ownership information

  • Type Operator
    Owner Edith Trabucco, Et Al.

Production statistics

  • Year 1909
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^.63 Oz Au/Ton .01 Oz Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 18g/mt
    Ore Silver Silver 0g/mt

Workings at the site

  • Type of workings Underground
    Length 91.44M
    Overall depth 30.48M

Comments on the workings information

  • 200 FT INCLINE, 100 FT TUNNEL, DRIFTS

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. 288

  • Deposit

    AUBURY, L. E., 1904 , REGISTER OF MINES AND MINERALS, MARIPOSA COUNTY CALIFORNIA: CALIFORNIA STATE MINING BUREAU, P. 12

  • Production

    BOWEN & GRAY 1957

General comments

Subject category Comment text
Deposit VEIN

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-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.

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.