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  3. Mineral Resource Data System (MRDS)

Willoughby

Past Producer in Sierra county in California, United States with commodities Gold, Lead
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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. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10086587
MRDS ID X025566
Record type Site
Current site name Willoughby
Alternate or previous names Gold Basis
Related records 10262406

Geographic coordinates

Geographic coordinates: -120.69964, 39.65599 (WGS84)
Relative position 7 1/2 MI. NNW OF SIERRA CITY

Site location context

Political divisions (FIPS codes)

Sierra(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gold Lake(quadrangle 1:24,000 scale)

Portola(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yuba(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Tahoe 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 Sierra

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 021N 011E 25 California

Commodities

Commodity Importance
Gold Primary
Lead Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Pyrite Ore
Quartz Gangue

Host and associated rocks

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

Economic information

Ore body information

  • Strike N
    Dip 60 W

Comments on the geologic information

  • 2 PARALLEL VEINS, 75 - 100 FT. APART. FOOTWALL SLATE & PORPHYRY HANGING WALL.

Economic information about the deposit and operations

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

Comments on the production information

  • NO OTHER PRODUCTION RECORD FOUND.

Comments on the workings information

  • 2 ADITS, 566 FT. & 700 FT. LONG. X CUT, STOPES, ALL ON FRONT LEDGE.

Reference information

Bibliographic references

  • Deposit

    AVERILL, C. V., 1942 , MINES AND MINERAL RESOURCES OF SIERRA CO.: CDM CALIF. JOUR. MINES AND GEOL., VOL. 38 , NO. 1 , P. 67 .

  • Deposit

    LOGAN, C. A., 1929 , SIERRA CO.: CDMM 25TH REPORT STATE MINERALOGIST, APRIL, P. 173 , 183 .

  • Deposit

    MACBOYLE, E., 1920 , MINES AND MINERAL RESOURCES SIERRA CO.: CSMB 16TH REPORT STATE MINERALOGIST, DEC. 1918 , P. 132 , 133 .

  • Production

    MACBOYLE, 1920

General comments

Subject category Comment text
Deposit PURCHASED FOR $20000 BY RODDY. OWNER ( AVERILL, 1942 ) GOLD BASIS MNG. & MG., 1608 WEBSTER ST., OAKLAND, CA.; ROBERT JUMP FRUITVALE; ERNEST FARREL, DOWNIEVILLE. ; INFO.SRC : 1 PUB LIT
Deposit VEINS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Hayden, F. (Albers, J.) 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.