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

MRDS	M021937
DEP	10034899
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 )}
Reporter	Nelson, Scott C. (Albers, John, P.)