Mine detail: Empire

Previously called 'Gold Valley'

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Location

Lat / long:

39.64905, -120.70492

Resource(M)

Primary:	Gold
Tertiary:	Lead, Copper
Ore:	Galena, Gold, Pyrite
Gangue:	Quartz

Production

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

Geology

Host type:	Slate,Volcanic Rock (Aphanitic)
Associated type:	Volcanic Rock (Aphanitic)

References

MRDS	X025568
DEP	10086589
Reference	{Deposit:: AVERILL, C. V., 1942 , MINES AND MINERAL RESOURCES OF SIERRA CO.: CDM CALIF. JOUR. MINES AND GEOL., VOL. 38 , NO. 1 , P. 54 .}{Deposit:: LOGAN, C. A., 1929 , SIERRA CO.: CDMM 25TH REPORT STATE MINERALOGIST, APRIL, P. 163 , 176 .}{Deposit:: CRAWFORD, J. J., 1894 , SIERRA CO.: CSMB 12TH REPORT STATE MINERALOGIST, P. 265 , SKETCH MAP P. 265 .}{Production:: LOGAN, 1929}
Reporter	Hayden, F. (Albers, J.)