Mine detail: Martinez

Previously called 'Hillside Group'

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Location

Lat / long:

38.63657, -120.81935

Resource(M)

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

Production

Operation type:	Unknown
Production size:	Yes
Development status:	Past Producer
Production years:	1926 - 31 , 1934 - 41

Geology

Host rock:	Mariposa Formation;
Host type:	Amphibolite
Structure:	Rocks In Area Trend Nw, Formations Are Much Disturbed By Faulting Some Faulted To Ne With Displacement From 16 To 30 Ft.

References

MRDS	C007700
DEP	10101080
Reference	{Deposit:: CLARK, W. B., AND CARLSON, D. W., 1956 , MINES AND MINERAL RESOURCES OF EL DORADO CO., CALIF.: CALIF. JOUR. OF MINES AND GEOL., VOL 52 , NO. 4 , PG 419 , 517 AND PL 10 .}{Deposit:: LOGAN, C. A., 1935 , MOTHER LODE GOLD BELT OF CALIF.: CALIF. DIV. MINES BULL. 108 , PG 30 - 31 , AND PL II.}{Deposit:: LOGAN, C. A., 1938 , MIN. RESOURCES OF EL DORADO CO.: CALIF. JOUR. OF MINES AND GEOL., VOL. 34 ,NO. 3 , PG 237 - 238 , 264 AND PL II.}{Production:: CLARK ( 1956 )}
Reporter	Mateik, R.; Albers, John P., Mosier, Dan