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Garnet Hill

Past Producer in Calaveras county in California, United States with commodities Tungsten, Gold, Copper, Molybdenum
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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. Land status
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10008591
MRDS ID D000902
Record type Site
Current site name Garnet Hill
Alternate or previous names Rheona Claim
Related records 10235196

Geographic coordinates

Geographic coordinates: -120.251, 38.48324 (WGS84)
Relative position SOUTH SIDE OF MOKELUM NE RIVER, 2 MILES WEST OF SALT SPRING DAM.

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Garnet Hill(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)

Federal lands

Stanislaus National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 007N 016E 06,07 California

Commodities

Commodity Importance
Tungsten Critical Primary
Gold Secondary
Copper Secondary
Molybdenum Tertiary

Comments on the commodity information

  • CHALCOPYRITE CONTAINED MINOR AMOUNT OF AU

Materials information

Materials Type of material
Chalcopyrite Ore
Scheelite Ore
Epidote Gangue
Garnet Gangue

Analytical data

Result EST., .4% WO3

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) -120.251, 38.48324
ListMap

Economic information

Ore body information

  • Length 152.4M
    Width 3.05M

Comments on the geologic information

  • GEOL.DESC: COUNTRY ROCK AND TACTITE PART OF ELONGATE ROOF PENDENT SURROUNDED BY GRANODIORITE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1953-1954

Land status

Ownership category National Forest

Comments on the production information

  • 1953-1954, ORE WAS MINED ON WEST TACTITE BODY, THEN TRUCKED TO MILL AT CHURCH GOLD MINE, OPERATIONS CEASED IN 1954

Comments on the workings information

  • ADIT 270 FT LONG NEAR NORTH END OF TACTITE BODY OPEN PIT

Reference information

Bibliographic references

  • Deposit

    CLARK, W.B. AND LYDON, P.A., 1962; MINES AND MINERAL RESOURCES CALAVERAS COUNTY, CA.; COUNTY REPT. 2; CALIF. DIV OF MINES AND GEOLOGY, P. 121-123.

  • Deposit

    LEMMON, D.M.; TUNGSTEN DEPOSITS OF THE US, VOL. I; UNPUBLISHED DATA, P. 170.

  • Deposit

    LEMMON, D.M. AND TWETO, O.L., 1962; TUNGSTEN IN THE US; USGS MAP, MR-25.

  • Production

    CLARK AND LYDON, 1962

General comments

Subject category Comment text
Deposit BED OF TACTITE IS 25 FT. THICK AND EXPOSED FOR 750 FT. IN LENGTH.
Deposit LESS THAN 0.4% WO3

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1974 Elliott, James E. U.S. Geological Survey
Updater 01-MAR-1979 Fraticelli, L. A. (Albers, J.) U.S. Geological Survey PARSED HOST ROCK AND ASSOCIATED ROCK INFORMATION FROM OLD SINGLE VALUED FIELD TO NEW MULTIVALUED FIELD
Editor 09-JUN-1995 Mosier, Dan 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.