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Porphyry Mill Claims

Past Producer in Grant county in Oregon, United States with commodities Gold, Silver
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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. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10098344
MRDS ID M015747
Record type Site
Current site name Porphyry Mill Claims
Related records 10201772

Geographic coordinates

Geographic coordinates: -118.79384, 44.71374 (WGS84)

Site location context

Political divisions (FIPS codes)

Grant(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Susanville(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 033E 07 Oregon

Commodities

Commodity Importance
Gold Primary
Silver Primary

Materials information

Materials Type of material
Quartz Gangue
Sericite Gangue

Analytical data

Result 15 FOOT CHANNEL SAMPLE AVERAGED $1.80 A TON (ORE. BUR. MINES, 1916)

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Nearby scientific data

(1) -118.79384, 44.71374
ListMap

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Susanville

Land status

Ownership category
Area name Malheur Natioal Forest

Comments on the workings information

  • WORKINGS CONSIST OF A NUMBER OF TUNNELS AND ADITS.

Reference information

Bibliographic references

  • Deposit

    PARKS, H.M. AND SWARTLEY, A.M., 1916, METAL MINES HANDBOOK; OREGON BUREAU OF MINES VOL. 2, P. 182

General comments

Subject category Comment text
Deposit MINERALIZATION OCCURS IN AND ALONG THE CONTACTS OF THREE, 30 TO 40 FOOT WIDE QUARTZ DIORITE PORPHYRY DIKES. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1980 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.

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