1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Dewey

Past Producer in Siskiyou county in California, United States with commodity Gold
Map
XML
JSON
KML
C
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. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10086613
MRDS ID X025662
Record type Site
Current site name Dewey
Alternate or previous names Dewey Gold Mines Trust
Related records 10238563

Geographic coordinates

Geographic coordinates: -122.58111, 41.42928 (WGS84)
Elevation 1585
Relative position 2.7 MI. N. CRATER LAKE

Site location context

Political divisions (FIPS codes)

Siskiyou(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

China Mountain(quadrangle 1:24,000 scale)

Mount Shasta(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Shasta(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Shasta-Trinity 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 041N 006W 06 California

Comments on the location information

  • UTM ACC NW 1/4 SE 1/4

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • SULFIDE ORE OF GOOD GRADE WAS KNOWN TO EXIST AT BOTTOM OF WINZE

Materials information

Materials Type of material
Gold Ore

Alteration

  • (Local) Oxidation

Host and associated rocks

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

Nearby scientific data

(1) -122.58111, 41.42928
ListMap

Economic information

Ore body information

  • Strike N40E, E
    Dip 30 SE, 70-80N
    Thickness 3.66M

Economic information about the deposit and operations

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

Comments on the production information

  • AU ORE PRODUCED IN 1917. PRODUCTION FROM OXIDIZED ORE ABOVE 100 AND 200 FT ADIT LEVELS. SOUTHERN PACIFIC COMPANY (1964).

Comments on the workings information

  • 400 FT. SHAFT, 920 FT. ADIT AND NUMEROUS DRIFTS, RAISES AND STOPES. MILLSITE, SEVERAL HUNDRED FT. OF DIAMOND DRILLING DONE TO PROSPECT WALLS OF VEIN FOR PARALLEL VEINS. RESULTS STATED TO HAVE BEEN GOOD

Reference information

Bibliographic references

  • Deposit

    SOUTHERN PACIFIC COMPANY, 1964, MINERALS FOR INDUSTRY, NORTHERN CALIFORNIA, V2, P. 139

  • Deposit

    AVERILL, C.V., 1935, MINES AND MINERAL RESOURCES OF SISKIYOU COUNTY, CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 31, NO. 3, P. 279, PL. 4

  • Deposit

    LOGAN, C.A., 1925, SACRAMENTO FIELD DIVISION: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 21, NO. 4, P. 438

  • Deposit

    BROWN, G.C., 1914, THE COUNTIES OF SHASTA, SISKIYOU AND TRINITY, CALIF: CALIF. JOUR. MINES & GEOLOGY, V. 14, PT. 4, P. 831

  • Production

    AVERILL (1935) BROWN (1914)

General comments

Subject category Comment text
Deposit VEIN, 3 FT. THICK - ORE IS OXIDIZED IN UPPER LEVELS DECREASING W/DEPTH
Deposit NO ACRES. PATENTED. DISCOVERED IN EARLY 1880'S ; 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.

External references

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.