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

London Extension

Unknown in Calaveras 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. 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 10138057
MRDS ID M005947
MAS/MILS ID 0060090345
Record type Site
Current site name London Extension
Related records 10028762

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -120.64491, 38.05571 (WGS84)
Elevation 549
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Salt Spring Valley(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Calaveras(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002 N 012 E 03 S2NW California

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

Main Entrance (1) -120.64491, 38.05571
ListMap

Economic information

Economic information about the deposit and operations

Operation type Underground
Commodity type Metallic
Significant No

Land status

Ownership category Unknown

Reference information

Bibliographic references

  • Deposit

    USGS FOLIO 63-MOTHER LODE DISTRICTCLAIM SHEET 1

Reporter information

Type Date Name Affiliation Comment
Reporter 04-NOV-1983 Western Field Operations Center (WFOC) 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.