1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Number One

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. Mining district
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10030922
MRDS ID M009413
Record type Site
Current site name Number One
Alternate or previous names Martin Quartz

Geographic coordinates

Geographic coordinates: -120.18849, 37.5391 (WGS84)
Elevation 457
Relative position 4 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 34,35 California

Comments on the location information

  • UTM EST S 1/2 (?)

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -120.18849, 37.5391
ListMap

Economic information

Ore body information

  • Strike NW
    Dip 43 SW
    Thickness 0.91M
    Depth to top 0M

Comments on the geologic information

  • SLATE FOOTWALL, DIABASE & PORPHYRY HANGING WALL

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1875

Mining district

District name Hornitos

Comments on the production information

  • NO PRODUCTION RECORD FOUND. OPERATED INTERMITTENTLY 1896-1917.OPERATED INTERMITTENTLY 1896-1917.

Workings at the site

  • Type of workings Underground
    Length 475.49M
    Overall depth 109.73M

Comments on the workings information

  • SHAFT & 1200 FT DRIFTS, STOPES

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. 291

  • Deposit

    CASTELLO, W.O., 1921 , MINES AND MINERAL RESOURCES OF MARIPOSA COUNTY IN SEVENTEENTH REPORT OF THE STATE GEOLOGIST: CALIFORNIA STATE MINING BUREAU, P 130

  • Deposit

    LAIZURE, C. MCK., 1928 , SAN FRANCISCO FIELD DIVISION IN TWENTY-FOURTH REPORT OF THE STATE MINERALOGIST: CALIFORNIA STATE MINING BUREAU, P. 105

General comments

Subject category Comment text
Deposit VEIN, AVG 3 FT THICK
Deposit ONE UNPATENTED CLAIM. ; 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.