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Jack Forth Claims

Past Producer in Plumas county in California, United States with commodity Chromium
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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. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Land status
  12. Ownership information
  13. Production statistics
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10098568
MRDS ID M100408
Record type Site
Current site name Jack Forth Claims

Geographic coordinates

Geographic coordinates: -121.12688, 40.0257 (WGS84)
Elevation 890
Location accuracy 1000(meters)
Relative position Assumed Spot Center Se, Sect. 18.

Site location context

Political divisions (FIPS codes)

Plumas(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Caribou(quadrangle 1:24,000 scale)

Lake Almanor(quadrangle 1:100,000 scale)

Susanville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

East Branch 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 025N;025N;025N 008E;008E;008E 18;22;34 SE (18) California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Analytical data

Result ORE AVG. 36.28% CR2O3, 12.24% FE, CR TO FE RATIO 2.03 TO

Nearby scientific data

(1) -121.12688, 40.0257
ListMap

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discoverer Jack Forth
Year of last production 1944

Mining district

District name Meadow Valley Area

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner S. R. Weeks
    First year 1943
    Last year 1944
  • Type Owner
    Owner Jack Forth

Production statistics

  • Year 1943
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^Avg 36.28% Cr2o3, 1943-1944
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Ore Chromium Chromium 36wt-pct

Comments on the production information

  • MOST IF NOT ALL ORE CAME FROM DEPOSIT IN SECT. 18.

Reference information

Bibliographic references

  • Deposit

    RYNEARSON, G.A., 1953, CDMG BULL 134, PT. 3, CHAPT. 5, P. 299, 314

  • Production

    CDMG BULL 134 PT. 3, CHAPT. 5, P. 292

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-82 Oster, Karel L. (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.