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  3. Mineral Resource Data System (MRDS)

Land Group

Past Producer in Imperial 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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10099514
MRDS ID TC40032
Record type Site
Current site name Land Group
Alternate or previous names Calcite, Big Chief
Related records 10114944

Geographic coordinates

Geographic coordinates: -114.9883, 33.06229 (WGS84)
Relative position 6.2 MILES NE OF GLAMIS.

Site location context

Political divisions (FIPS codes)

Imperial(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ninemile Wash(quadrangle 1:24,000 scale)

Trigo Mountains(quadrangle 1:100,000 scale)

Salton Sea(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Salton Sea(hydrologic accounting unit)

Southern Mojave-Salton Sea(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Imperial

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 013S 019E 5 SE4 California

Comments on the location information

  • SW BASE OF CHOCOLATE MOUNTAINS.

Commodities

Commodity Importance
Gold Primary

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) -114.9883, 33.06229
ListMap

Economic information

Ore body information

  • Strike N10W
    Dip 80NE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Chocolate Mountains

Comments on the production information

  • LESS THAN 100 TONS.

Comments on the workings information

  • 100 FT VERTICAL SHAFT WITH 50 FT AND 100 FT LEVELS. AT 50 FEET, 70 FT AND 25 FT DRIFTS TO THE SE END AND NW, RESPECTIVELY. AT 100 FEET, 70 FT AND 100 FT DRIFTS TO THE SE AND NW. SMALL PIT 25 FT IN DIAMETER, 15 FT DEEP , 300 FT TO THE NW EXPLORING A REPORTEDLY HIGH GRADE POCKET.

Reference information

Bibliographic references

  • Deposit

    MORTON, P.K., 1977, GEOLOGY AND MINERAL RESOURCES OF IMPERIAL COUNTY, CALIFORNIA: CALIFORNIA DIVISION MINES AND GEOLOGY, COUNTY REPORT NO. 7, P. 54

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit OCCURS IN FRACTURE ZONE IN GNEISSIC AND SHISTOSE ROCKS COMPLEXLY INTRUDED BY FINE GRAIN GRANITIC ROCK. FRACTURE ZONE ABOUT 6 FT WIDE CONTAINS NARROW RAMIFYING VEINS OF CALCITE, QUARTZ, FE-OXIDES AND NATIVE GOLD.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1993 Unkefer, Jason 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.