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Pioneer Mine

Past Producer in Grant county in Oregon, United States with commodities Silver, Gold, Zinc, Antimony
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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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10098331
MRDS ID M015052
Record type Site
Current site name Pioneer Mine
Alternate or previous names New Eldorado Mining and Reduction Co., E.B. Reed Property
Related records 10274364

Geographic coordinates

Geographic coordinates: -118.66078, 44.71874 (WGS84)
Elevation 1829

Site location context

Political divisions (FIPS codes)

Grant(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Boulder Butte(quadrangle 1:24,000 scale)

Bates(quadrangle 1:100,000 scale)

Canyon City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Fork John Day(hydrologic unit)

John Day(hydrologic accounting unit)

Middle Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Malheur 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 010S 034E 07 NE Oregon

Comments on the location information

  • NE 1/4

Commodities

Commodity Importance
Silver Primary
Gold Primary
Zinc Critical Tertiary
Antimony Critical Tertiary

Materials information

Materials Type of material
Gold Ore
Pyrargyrite Ore
Pyrite Ore
Stibnite Ore
Quartz Gangue

Analytical data

Result SAID TO CONTAIN LOW VALUES THROUGHOUT ALTERED ZONE.

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) Sedimentary and volcanic rocks
ListMap

Economic information

Ore body information

  • Strike N 35 E
    Dip 90

Comments on the geologic information

  • GEOL.DESC: COUNTRY ROCK IS CUT BY NUMEROUS COARSE - GRAINED DIKES OF GRANODIORITE - PORPHYRY, AND MANY VEINS IN ALTERED ZONE. ZONE HAS A SOFT MASS OF EXTREMELY ALTERED GRANODIORITE, IN WHICH FERRO-MAGNESIAN MINERALS HAVE BEEN NEARLY DECOMPOSED AND FELDSPARS HAVE BEEN KAOLINIZED.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name New Eldorado

Land status

Ownership category
Area name Malheur Natioal Forest

Comments on the workings information

  • DEVELOPMENT IS ALMOST ENTIRELY OF DRIFTS ALONG LARGER VEINS

Reference information

Bibliographic references

  • Deposit

    OREGON METAL MINES HANDBOOK, 1941, ODGMI BULL. 14-B, P.87

General comments

Subject category Comment text
Deposit CONSV. RECORD (M015053) HAS BEEN MERGED WITH THIS RECORD AND DELETED FROM THE OREGON FILE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1976 Lee, W. U.S. Geological Survey
Updater 01-MAY-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.

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