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Pioneer Mine

Past Producer in Placer county in California, 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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10034899
MRDS ID M021937
Record type Site
Current site name Pioneer Mine
Alternate or previous names Pioneer Cons.

Geographic coordinates

Geographic coordinates: -120.7277, 39.16683 (WGS84)
Elevation 975
Relative position 2 MI. NW DAMASCUS

Site location context

Political divisions (FIPS codes)

Placer(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Westville(quadrangle 1:24,000 scale)

Truckee(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North Fork American(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 Placer

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 015N 011E 03,04,10 California

Comments on the location information

  • UTM ACC SW 1/4 SEC. 3

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Comments on the commodity information

  • AG LESS THAN 1% AU

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
    Stratigraphic age (youngest) Pennsylvanian
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -120.7277, 39.16683
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Vein Follows Dike Through Most Of Claim.

Ore body information

  • General form RIBBON-LIKE
    Strike NE
    Dip 80 SE
    Thickness 4.27M

Economic information about the deposit and operations

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

Mining district

District name Damascus

Land status

Ownership category National Forest

Comments on the production information

  • FIRST WORKED 1854-1862. SOME PRODUCTION THROUGH 1922. NO OTHER PRODUCTION RECORD FOUND.

Workings at the site

  • Type of workings Underground
    Length 2141.22M
    Overall depth 438.91M

Comments on the workings information

  • 13 LEVELS, SHAFT, TUNNELS, DRIFTS, ADITS, WINZE, STOPING ALONG VEINS.

Reference information

Bibliographic references

  • Deposit

    LOGAN, C. A., 1936 , GOLD MINES OF PLACER COUNTY, CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 32 , NO. 1 , P. 31 - 33 .

  • Deposit

    WARING, CLARENCE A., 1917 , PLACER COUNTY: REPORT 15 OF THE STATE MINERALOGIST, CALIFORNIA STATE MINING BUREAU, P. 347 .

  • Deposit

    CRAWFORD, J. J., 1894 , GOLD-PLACER COUNTY: REPORT 12 OF THE STATE MINERALOGIST, CALIFORNIA STATE MINING BUREAU, P. 211 .

  • Production

    LOGAN ( 1936 )

General comments

Subject category Comment text
Deposit 2 VEINS, LYNN VEIN 14 FT. THICK. PIONEER VEIN 2 1/2 - 9 FT. THICK. BOTH CARRY SULFIDES.
Deposit PATENTED. 728 ACRES. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1979 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.