Imperial - Eagle Group

Past Producer in Grant county in Oregon, United States with commodities Gold, Silver, Arsenic, Copper, Lead, Zinc, Molybdenum
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. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10032986
MRDS ID M014825
Record type Site
Current site name Imperial - Eagle Group
Alternate or previous names Imperial, Ivy May, Winchester

Geographic coordinates

Geographic coordinates: -118.27299, 44.86291 (WGS84)

Site location context

Political divisions (FIPS codes)

Baker(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Ireland(quadrangle 1:24,000 scale)

Bates(quadrangle 1:100,000 scale)

Canyon City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Powder(hydrologic unit)

Middle Snake-Powder(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Wallowa-Whitman 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 Oregon Grant

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 008S 036E 14 SW Oregon

Comments on the location information

  • SW 1/4

Commodities

Commodity Importance
Gold Primary
Silver Primary
Arsenic Critical Tertiary
Copper Tertiary
Lead Tertiary
Zinc Critical Tertiary
Molybdenum Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Molybdenite Ore
Sphalerite Ore
Calcite Gangue
Chlorite Gangue
Quartz Gangue
Sericite Gangue

Analytical data

Result ESTIMATED RATIO OF SULFIDES TO GANGUE 1:10 . AU LESS THAN 10 PERCENT FREE. AG TO AU RATIO 10:1

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Bald Mountain Batholith
    Rock description Bald Mountain Batholith
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -118.27299, 44.86291

Economic information

Ore body information

  • Length 3218.6M
    Width 7.62M

Controls for ore emplacement

  • Shear Zone

Comments on the geologic information

  • GEOL.DESC: ORE IN NARROW LENSES UP TO 24 INCHES WIDE, STOPE AND PITCH LENGTH LESS THAN 50 FT. AND FOUND NEAR HANGING WALL.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1885 - 1915

Mining district

District name Cable Cove

Land status

Ownership category
Area name Wallowa-Whitman National Forest

Ownership information

  • Type Owner
    Owner Brandenthaler, A. (Estate)
    First year 1980

Comments on the production information

  • TOTAL PRODUCTION PROBABLY DOES NOT EXCEED $100,000 .

Comments on the workings information

  • DEVELOPMENT TOTALS ABOUT 1,000 FEET FROM 6 ADITS. TOTAL PRODUCTION PROBABLY DOES NOT EXCEED $100,000 .

Reference information

Bibliographic references

  • Deposit

    BROOKS, H. C., AND RAMP, L., 1968 , GOLD AND SILVER IN OREGON, ODGMI, BULL. 61 , P. 70 .

  • Deposit

    OREGON METAL MINE HANDBOOK, 1939 , ODGMI, BULL. 14-A, P. 19 .

  • Deposit

    HEWITT, D.F., 1931, ZONAL RELATIONSHIPS OF THE LODES OF THE SUMPTER QUADRANGLE; AIME TRANS., V.5, P.305

  • Production

    ODGMI, BULL 14 - A, P. 19

General comments

Subject category Comment text
Deposit QUARTZ VEINS IN THE CABLE COVE ARE PERSISTANT. THE EAGLE VEIN, THE MOST EASTERLY OF THE VEINS, CAN BE TRACED FOR ABOUT 3 MILES. ORE SHOOTS REACH LENGTHS OF 200 FEET AND ARE MADE UP OF LENTICULAR BODIES OF SULPHIDES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1976 Lee, W. U.S. Geological Survey
Updater 01-APR-1980 Bradley, Robin (Walker, George W.) 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.

External references