StructureIn Tertiary Volcanic Field, With Blocks Faulted Against Prec Oracle Granite, Ew And Nw-Se Normal Faults In 2 Mile Radius Both North And West Of Mine, Nne Strike And Almost Vertical E Dip, Shown On Mf-934, For Andesite Bedding
Economic & production
Development statusProducer
Last production1965
Discovery year1895
Identification
Deposit ID10109773
MRDS IDM241167
Alternate namesEsperanza Cowboy Mine, Black Crator ?, Standard Copper, Standard Group