Portland Group

Producer in Josephine county in Oregon, United States with commodities Gold, Silver
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Production statistics
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10042714
MRDS ID M060637
Record type Site
Current site name Portland Group
Alternate or previous names Holland

Geographic coordinates

Geographic coordinates: -123.51309, 42.11788 (WGS84)

Site location context

Political divisions (FIPS codes)

Josephine(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Takilma(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

Bureau of Land Management(Bureau of Land Management OR)

Bureau of Land Management OR BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Oregon Josephine

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 040S 007W 03 CENTER Oregon

Comments on the location information

  • CEN

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Quartz Gangue

Alteration

  • (Local) Silicified, Bleached, Altered Shear Zone

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite
    Rock unit name Applegate Group
    Rock description Applegate Group
    Stratigraphic age (youngest) Late Triassic

Nearby scientific data

(1) -123.51309, 42.11788

Economic information

Ore body information

  • Width 0.91M

Comments on the geologic information

  • QUARTZ VEINS IN A SILICIFIED, BLEACHED, AND ALTERED SHEAR ZONE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1923

Mining district

District name Waldo

Land status

Ownership category BLM Administrative Area

Production statistics

  • Year 1923
    Period 1923
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^0.2-0.74 Au, 0.2 Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 6g/mt
    Major Ore Gold Gold 13g/mt

Comments on the production information

  • TOTAL PRODUCTION NOT REPORTED

Comments on the workings information

  • SHAFT 115, ADIT 350 TOTAL PRODUCTION NOT REPORTED

Reference information

Bibliographic references

  • Deposit

    RAMP, L. AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON; ODGMI BULL. 100, 45P

  • Deposit

    BROOKS, H.C. AND RAMP, L., 1968, GOLD AND SILVER IN OREGON; ODGMI BULL. 61, P.261

  • Deposit

    OREGON METAL MINES HANDBOOK, 1942, ODGMI BULL. 14-C, VOL. 2, SEC. 1, P.212

  • Production

    USBM

General comments

Subject category Comment text
Deposit RECORD NUMBER (M013292) HAS BEEN MERGED WITH THIS RECORD AND DELETED FROM THE OREGON FILE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1979 Johnson, Maureen G. U.S. Geological Survey
Updater 01-APR-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.