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Emma Ii

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. Economic information about the deposit and operations
  11. Ownership information
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10031141
MRDS ID M009737
Record type Site
Current site name Emma Ii
Related records 10285058

Geographic coordinates

Geographic coordinates: -120.00765, 37.55049 (WGS84)
Relative position 3 1/2 MI. NE OF MOUNT BULLION

Site location context

Political divisions (FIPS codes)

Mariposa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bear Valley(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)

Geographic areas

Country State County
United States California Mariposa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 004S 018E 29,32 California

Comments on the location information

  • ADJOINS SULTANA CLAIM ON THE EAST AND THE MOHAWK CLAIM ON THE NORTH UTM EST.

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -120.00765, 37.55049
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: ON S EXT. OF THE NORTH-TRENDING SPENCER VEIN. A 2ND VEIN DIVERGES FROM THE MAIN VEIN TOWARD THE NE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Fisher Research Laboratories, Inc.

Comments on the production information

  • INACTIVE IN 1956.

Workings at the site

  • Type of workings Underground
    Area 11.728HA

Comments on the workings information

  • 40 FT. SHAFT AND SHORT LATERAL WORKINGS.

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. 257

General comments

Subject category Comment text
Deposit VEINS
Deposit TWO FRACTIONAL CLAIMS, THE EMMA 1 AND 2, TOTALING 28.92 ACRES. PATENTED. THE BEAR VALLEY QUAD SHOWS MANY UNIDENTIFIED WORKINGS IN THESE TWO SECTIONS. MOST OF WHICH PROBABLY ARE COVERED BY THE CARDS.

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.

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.