Mine detail: Jumper

Previously called 'Rose Rock'

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Location

Lat / long:

38.17491, -120.45294

Resource(M)

Primary:	Gold
Ore:	Galena, Gold, Pyrite, Sphalerite
Gangue:	Quartz

Production

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

Geology

Host type:	Mica Schist
Structure:	Vein Accompanied By Dike

References

MRDS	M021648
DEP	10034754
Reference	{Deposit:: CLARK, W.B., LYDON, P.A., 1962 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIF. COUNTY REPORT 2 ; CALIF. DIV. OF MINES AND GEOLOGY, P. 160}{Deposit:: CRAWFORD, J.J., 1896 , CALAVERAS COUNTRY: CALIF. MIN. BUR. 13TH REPORT STATE MINERALOGIST, P. 109}{Deposit:: LOGAN, C.A., FRANKE, H., 1936 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 32 , NO. 3 ; DIV. OF MINES, P. 309}
Reporter	Mateik, R.; Albers, John P.