Arizona Geological Society

Commonwealth Silver-Gold Project, Cochise Co., Arizona - February 2013

Hall Stewart Describing the Site to Field Trip Participants (Photo provided by Bill Peachey)

Looking Northeast from Pearce Hill.   Historic Mill Foundations (foreground), Tailings (middle ground) and Dos Cabezas Mountains in the Distance (Photo provided by Bill Peachey)

Hall Stewart Describes the Geology of the Pearce Mining District (Photo provided by Bill Peachey)

Epithermal Quartz Veining in the Rhyolite Breccia (Photo provided by Bill Peachey)

 


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