Commodities
TertiaryChromium, Iron
Commodity typeM
Materials
Other materialsChromite, Magnesite, Serpentine
Economic & production
Development statusPast Producer
First production1918
Discovery year1890
Identification
Deposit ID10187077
MRDS IDM004639
Alternate namesHolbrook and Mcguire Group, High Grade Workings, Low Grade Workings
RegionNA
Data scoreC
Coordinates37.96021, -120.5641
References
CAL. DIV. MINES GEOL BULL 134,PT3CHAP 2,P.42-44,PL.5CAL DIV MINES GEOL BULL 145,PL 2CAL. COUNTY REPT NO.2,P.22,129,& PL.D 1962COOP WAR MINERALS INVEST. PROJ, CALAVERAS COUNTY NO.6&7, 19