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Johnstone Mine

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

Geologic information

Identification information

Deposit ID 10029287
MRDS ID M006735
Record type Site
Current site name Johnstone Mine
Alternate or previous names L.G. Johnstone Mine

Geographic coordinates

Geographic coordinates: -120.54962, 38.40491 (WGS84)
Elevation 823
Relative position 1 MI. NW OF W. POINTADJOINS ANNAPOLIS MINE TO THE NORTH

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

West Point(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Mokelumne(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 006N 013E 04 California

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • ORE SAID TO AVERAGE $16 PER TON WITH 40 % OF AU IN SULFIDES

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

Nearby scientific data

(1) -120.54962, 38.40491
ListMap

Economic information

Ore body information

  • General form VEIN
    Strike N
    Dip 55 W
    Thickness 1.22M

Comments on the geologic information

  • THOUGHT TO BE EXTENSION OF CARLTON VEIN, VEIN AVERAGES 4 FT. THICKNESS

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Comments on the production information

  • ACTIVE 1934 - 1936

Comments on the workings information

  • DEVELOPED BY 110 FT INCLINED SHAFT WITH DRIFTS 50 FT TO S & N ON 50 FT LEVEL, CROSSCUTS AND OTHER DRIFTS

Reference information

Bibliographic references

  • Deposit

    LOGAN, C.A., FRANKE, H., 1936 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 32 , NO. 3 ; DIV. OF MINES, P. 266

  • Production

    LOGAN ( 1936 )

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1979 Mateik, R.; Albers, John P. 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.