Mine detail: Pioneer Mine

Previously called 'Pioneer Cons.'

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Location

Lat / long: 39.16683, -120.7277

Resource(M)

Primary: Gold
Secondary: Silver
Ore: Gold
Gangue: Quartz
Orebody form: RIBBON-LIKE

Production

Operation type: Unknown
Production size: Medium
Development status: Past Producer

Geology

Host type:Slate,Schist
Structure:Vein Follows Dike Through Most Of Claim.

References

MRDSM021937
DEP10034899
Reference{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 )}
ReporterNelson, Scott C. (Albers, John, P.)