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Mica Gem Group

Past Producer in San Diego county in California, United States with commodities Mica, Silica, Tungsten
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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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Land status
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10286572
MRDS ID D000982
MAS/MILS ID 0060730493
Record type Site
Current site name Mica Gem Group
Alternate or previous names Jacumba No. 1, Marden, Mica Springs Claim, Mica Springs No. 1, Little Randsburg, Madden
Related records 10008654

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -116.12363, 32.64287 (WGS84)
Elevation 1018
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

San Diego(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

In-Ko-Pah Gorge(quadrangle 1:24,000 scale)

El Cajon(quadrangle 1:100,000 scale)

San Diego(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Salton Sea(hydrologic accounting unit)

Southern Mojave-Salton Sea(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 San Diego

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 017 S 008 E 25 C SW California

Commodities

Commodity Importance
Mica Primary
Silica Tertiary
Tungsten Critical Tertiary

Nearby scientific data

Main Entrance (1) -116.12363, 32.64287
ListMap

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Both
Significant No

Land status

Ownership category State Park

Reference information

Bibliographic references

  • Deposit

    CALIF. DIV. MINES AND GEOL. COUNTY REPORT 3, 1963, P. 190,

  • Deposit

    193.

Reporter information

Type Date Name Affiliation Comment
Reporter 31-MAR-1991 Rumsey, Clayton M. U.S. Bureau of Mines

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.