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Porphyry Dike

Past Producer in Siskiyou county in California, United States with commodity Gold
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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. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10086616
MRDS ID X025676
Record type Site
Current site name Porphyry Dike
Related records 10141388

Geographic coordinates

Geographic coordinates: -122.7225, 41.33012 (WGS84)
Elevation 1097
Relative position 2 MI. S. EAST FORK SCHOOL

Site location context

Political divisions (FIPS codes)

Siskiyou(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Scott Mountain(quadrangle 1:24,000 scale)

Mount Shasta(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Scott(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Klamath 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 California Siskiyou

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 040N 007W 18 California

Comments on the location information

  • UTM EST. S 1/2 NW 1/4

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Nearby scientific data

(1) -122.7225, 41.33012
ListMap

Economic information

Ore body information

  • Strike NE
    Dip 90

Comments on the geologic information

  • DIKES IN OTHER PARTS OF DISTRICT OXIDIZED IN UPPER PARTS & WORKED BY HYDRAULICING.

Economic information about the deposit and operations

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

Mining district

District name East Fork

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 45.72M

Comments on the workings information

  • SMALL BALL MILL EQUIPPED IN 1921. PIT 48 FT. SHAFT, 65 FT. INCLINE, 20 FT. OPEN CUT AND 210 FT. ADIT

Reference information

Bibliographic references

  • Deposit

    SOUTHERN PACIFIC COMPANY, 1964, MINERALS FOR INDUSTRY, NORTHERN CALIFORNIA, V.2, P. 138

  • Deposit

    COOPER, A.S., 1900, REGISTER OF MINES AND MINERALS, COUNTY OF SISKIYOU, CALIF.: CALIF. STATE MINING BUREAU

  • Deposit

    LOGAN, C.A., 1925, SACRAMENTO FIELD DIVISION: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 21, NO. 4, P. 456

General comments

Subject category Comment text
Deposit DIKE. 250 FT. THICK ORE DESCRIBED AS 'PORPHYRITE'.
Deposit 20 ACRES ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1980 Nelson, Scott C. (Albers, John, P.) U.S. Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.