Independence

Producer in Coos county in Oregon, United States with commodities Chromium, Gold
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. Mining district
  12. Land status
  13. Production statistics
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10043018
MRDS ID M061479
Record type Site
Current site name Independence
Related records 10176769

Geographic coordinates

Geographic coordinates: -124.09257, 42.70314 (WGS84)
Elevation 780

Site location context

Political divisions (FIPS codes)

Coos(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Illahe(quadrangle 1:24,000 scale)

Port Orford(quadrangle 1:100,000 scale)

Cape Blanco(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Coquille(hydrologic unit)

Southern Oregon Coastal(hydrologic accounting unit)

Oregon-Washington Coastal(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Rogue River-Siskiyou National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Oregon Coos

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 033S 012W 23 Oregon

Commodities

Commodity Importance
Chromium Critical Primary
Gold Primary

Materials information

Materials Type of material
Chromite Ore
Gold Ore

Analytical data

Result ASSAY: 44.50% CR2O3, 11.7% FE, AND 11.2% S1O2

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite

Nearby scientific data

(1) -124.09257, 42.70314

Economic information

Comments on the geologic information

  • SMALL PODS OF CHROMITE OCCUR IN SERPENTINE. GOLD REPORTEDLY OCCURS IN QUARTZ VEINS ALONG GABBRO-SERPENTINE CONTACTS.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Powers

Land status

Ownership category National Forest
Area name Siskiyou National Forest

Production statistics

  • Year 1942
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^48. % Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 48wt-pct
  • Year 1943
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^48. % Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 48wt-pct
  • Year 1953
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^44. % Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 44wt-pct

Comments on the workings information

  • 475 FEET IN TWO ADITS PLUS A NUMBER OF SURFACE CUTS

Reference information

Bibliographic references

  • Deposit

    RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPT. GEOLOGY AND MINERAL IND. BULL. 52, 169 P.

  • Deposit

    THAYER, T. P., 1974, UNPUBL. DATA

  • Deposit

    OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES, 1940, OREGON METAL MINES HANDBOOK--COOS, CURRY, AND DOUGLAS COUNTIES: OREGON DEPT. GEOLOGY AND MINERAL INDUSTRIES BULL. 14-C, V. 1, 133 P

  • Deposit

    BALDWIN, E.M. AND OTHERS, 1973, GEOLOGY AND MINERAL RESOURCES OF COOS COUNTY, OREGON; ODGMI BULL. 80, P.52

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1980 Unknown U.S. Geological Survey
Updater 01-MAR-1981 Ferns, Mark L. (Brooks, Howard C.) U.S. Geological Survey
Updater 01-AUG-1993 Gray, Jerry J. Oregon Department of Geology and Mineral Industries

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.