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  3. Mineral Resource Data System (MRDS)

Francis

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

Geologic information

Identification information

Deposit ID 10031190
MRDS ID M009813
Record type Site
Current site name Francis
Alternate or previous names Frances
Related records 10261474

Geographic coordinates

Geographic coordinates: -120.03626, 37.39104 (WGS84)
Relative position 4 1/2 MI. SE OF CATHEYS VALLEY

Site location context

Political divisions (FIPS codes)

Mariposa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Catheys Valley(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 006S 018E 19,30 California

Comments on the location information

  • SE 1/4 19 , NE 1/4 30 UTM ACC.

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -120.03626, 37.39104
ListMap

Economic information

Ore body information

  • Strike NE
    Dip 45 SE
    Thickness 1.52M

Comments on the geologic information

  • GEOL.DESC: VEIN 4 - 5 FT. THICK

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1855
Production years - 1903

Ownership information

  • Type Operator
    Owner Gold Recovery Corp.
    Home office C/O T. S. O'Brien

Comments on the production information

  • INTERMITTENTLY ACTIVE UNTIL 1903. SOME DEVELOPMENT BUT LITTLE OR NO RECORDED PRODUCTION IN 1930'S. INACTIVE IN 1954.

Workings at the site

  • Type of workings Underground
    Area 8.094HA

Comments on the workings information

  • IN 1903, A 300-FT. INCLINED SHAFT W/3 LEVELS, 680 FT. OF DRIFTS; BEFORE THAT, TWO ADITS AND A RAISE.

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. 261 .

  • Deposit

    AUBRY, L. E., 1903 , REGISTER OF MINES AND MINERALS FOR MARIPOSA COUNTY, CALIF., P. 11 .

  • Production

    BOWEN AND GRAY, 1957

General comments

Subject category Comment text
Deposit PATENTED PROPERTY OF 20 ACRES.
Deposit VEIN
Deposit Discovery Year: 1850'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-JAN-1979 Hayden, F. (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.