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Copper Deposits of Part of Helvetia Mining District, Pima County Arizona
A report about the economic geology of four mines located in the Helvetia mining district in the Santa Rita Mountains in south central Arizona. The sedimentary rocks in Helvetia range from Cambrain to Cretaceous.
Date:
1955
Creator:
Creasey, S. C. & Quick, George L.
System:
The UNT Digital Library