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

Fraction Claim

Producer in Sierra county in California, United States with commodity Chromium
Map
XML
JSON
KML
C
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. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10111118
MRDS ID W025473
Record type Site
Current site name Fraction Claim
Related records 10262254

Geographic coordinates

Geographic coordinates: -120.84131, 39.58821 (WGS84)
Elevation 1402

Site location context

Political divisions (FIPS codes)

Sierra(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Downieville(quadrangle 1:24,000 scale)

Portola(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yuba(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Tahoe 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 Sierra

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 020N 010E 22 SW OF NE California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Analytical data

Result ORE AVG. 39.03 % CR203, 12.20 % FE, CR TO FE RATIO 2.19 TO 1.

Nearby scientific data

(1) -120.84131, 39.58821
ListMap

Economic information

Ore body information

  • General form LENSE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Year of first production 1942
Year of last production 1944

Mining district

District name Downieville Area

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner C. A., G. B. Winrod, 1942; C. L. Best Of Ruby-Oxford Mines, 1944.
  • Type Owner
    Owner C. A. And G. B. Winrod

Comments on the production information

  • TOTAL PRODUCTION 80.0 LT FROM 1942 -1944.

Comments on the workings information

  • WORKINGS CONSISTED (1942) OF AN OPEN CUT 40 BY 40 BY15 CUBIC FT.

Reference information

Bibliographic references

  • Deposit

    RYNEARSON, G. A., 1953, CDMG BULL 134, PT. 3, CHAPT.5, P. 253, 254

  • Production

    CDMG BULL 134, PT. 3, CHAPT. 5, P. 253, 254.

General comments

Subject category Comment text
Deposit DEPOSIT CONSISTED OF SEVERAL LENSES APPROX. 8 BY 6 BY 2 CUBIC FT. EACH.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1982 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.