Mine detail: Big Spring Claim

Previously called 'Graham'

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Location

Lat / long:

38.05297, -120.52794

Resource(M)

Primary:	Gold
Ore:	Gold
Gangue:	Quartz

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1932 - 1941

Geology

Host type:

Schist

References

MRDS	M006250
DEP	10028958
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 34 - 35 , 42 AND PLB}{Deposit:: LOGAN, C.A., 1934 , THE MOTHER LODE GOLD BELT OF CALIF: CALIF DIV. OF MINES BULL. 108 P 128}{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. 298}{Production:: LOGAN ( 1934 ), CLARK ( 1962 )}
Reporter	Mateik, R.; Albers, John P.