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Elkhorn Creek Mine

Past Producer in Josephine county in Oregon, 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. 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. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10042649
MRDS ID M060521
MAS/MILS ID 0410330236
Record type Site
Current site name Elkhorn Creek Mine
Alternate or previous names Kerby #22, Briggs Creek Chrome, Rose City Chrome, Nigger Chrome

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -123.71727, 42.43038 (WGS84)
Elevation 975

Site location context

Political divisions (FIPS codes)

Josephine(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Chrome Ridge(quadrangle 1:24,000 scale)

Grants Pass(quadrangle 1:100,000 scale)

Medford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Illinois(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 Josephine

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 036S 009W 13 Oregon
Willamette 036S 009W 24 NW Oregon

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

Main Entrance (1) -123.71727, 42.43038
ListMap

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Chrome Ridge

Land status

Ownership category National Forest
Area name Siskiyou National Forest

Production statistics

  • Year 1942
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^50. % Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 50wt-pct
  • Year 1945
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^48. % Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 48wt-pct
  • Year 1945
    Period 1942-1945
    Material ORE (CR)
    Accuracy Estimate
    Description Cp_Grade: ^Wwi 47% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 47wt-pct

Comments on the production information

  • ONLY MINE IN AREA TO SHIP ANY QUANTITY WWI; IN 1938 A FEW HUNDRED POUNDS REMAINED BUT THERE WERE POSSIBLE RESERVES. Reports state 250-300 tons at 47% Cr2O3 was shipped.

Comments on the workings information

  • Only Mine In Area To Ship Any Quantity Wwi; In 1938 A Few Hundred Pounds Remained But There Were Possible Reserves

Reference information

Bibliographic references

  • Deposit

    Ramp, Len, 1961, Chromite In Southwestern Oregon: Oregon Dept. Geology And Mineral Ind. Bulletin 52, 169 P. (P. 83)

  • Deposit

    Thayer, T. P., 1974, Unpubl. Data

  • Deposit

    Oregon Metal Mines Handbook, 1942, ODGMI Bulletin 14-C, Vol. 2, Sec. 1, P.128-129

  • Deposit

    Ramp, L. And Peterson, N.V., 1979, Geology And Mineral Resources Of Josephine County, Oregon; ODGMI Bulletin 100, Plate 2, No. 271.

General comments

Subject category Comment text
Deposit Not Seen In Place
General There seems to be disagreement between the publications. In Ramp and Peterson (1979), one of the claims is grouped with the Sad Sack. In the other publications it is with other properties. Ramp and Peterson show these in different places on their map. It is probable that Bull. 14-C is most correct.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1983 Unknown U.S. Geological Survey
Updater 01-FEB-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
Reporter 19-AUG-1992 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

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

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