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  3. Mineral Resource Data System (MRDS)

Grizzly Tungsten No. 1

Occurrence in Plumas county in California, United States with commodity 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. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Land status
  12. Ownership information
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10035287
MRDS ID M022585
Record type Site
Current site name Grizzly Tungsten No. 1
Related records 10261815

Geographic coordinates

Geographic coordinates: -121.37577, 39.87015 (WGS84)
Relative position ON THE FEATHER RIVER HWY, CLOSE TO BUTTE CO. LINE

Site location context

Political divisions (FIPS codes)

Plumas(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pulga(quadrangle 1:24,000 scale)

Chico(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North Fork Feather(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Plumas 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 Plumas

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 023N 005E 11 California

Commodities

Commodity Importance
Tungsten Critical Tertiary

Materials information

Materials Type of material
Scheelite Ore
Actinolite Gangue
Quartz Gangue

Host and associated rocks

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

Nearby scientific data

(1) -121.37577, 39.87015
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: COUNTRY ROCK IS A GRAY TO BLACK HORNBLENDE SCHIST WHICH RISES STEEPLY, GRANODIORITE INVADES THE SCHIST IN MANY PLACES AND DIKES OF SYENITE ARE COMMON.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner J. P. Branley
    Home office Greenville
  • Type Owner
    Owner Goodrich, C. B.
    First year 1942

Workings at the site

  • Type of workings Underground
    Length 3.96M

Comments on the workings information

  • ADIT 150 FT. ABOVE HWY RUNS ALONG CONTACT OF SCHIST FOR 13 FT.

Reference information

Bibliographic references

  • Deposit

    TUCKER, W. B. AND SAMPSON, R. J., 1941, RECENT DEVELOPMENT IN TUNGSTEN RESOURCES OF CALIFORNIA; CALIF. JOUR. MINES AND GEOLOGY, VOL. 37, NO. 4, P. 581

General comments

Subject category Comment text
Deposit AS OF 1941, NO ASSAYS HAD BEEN MADE - LACK OF DUMP ROOM WILL HANDICAP DEVELOPMENT. NO OTHER INFORMATION AVAILABLE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1979 Fraticelli, L. A. (Albers, J.) 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.