Commodities
PrimaryGold
SecondarySilver, Lead, Copper
TertiaryZinc
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Materials
Ore mineralsGold, Silver, Sphalerite
GangueQuartz
Geology
Host rockMetasedimentary Rock
Associated rockDiorite
Economic & production
Development statusPast Producer
Production years1860S , 1911 - 1937 , 1935 - 1940
Discovery year1860
Identification
Deposit ID10102910
MRDS IDM009851
Alternate namesAnderson I, Ferguson Original, Moonstone, Golden Rule, El Portal.
RegionNA
Data scoreB
Coordinates37.67326, -119.86487
References
CLARK, W. B., 1970 , GOLD DISTRICTS OF CALIF.: CDM BULL. 193 , P. 37-38 .BOWEN, O. E., JR., & GRAY, H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIF.: CALIF. JOUR. MINES & GEOL., VOL. 53 , NOS. 1 & 2 , P. 85 - 90 , 250 , 551 .BOWEN, O. E., 1962 , MINES NEAR YOSEMITE: CDM MINERAL INFO. SERVICE, VOL 15 , NO 3 , P. 2 .CASTELLO, W. O., 1921 , MARIPOSA COUNTY: 17TH REPORT STATE MINERALOGIST ( FOR 1920 ), P. 131 .BOWEN & GRAY, 1957