Investigation of the Lake Shore Copper Deposits, Pinal County, Arizona (open access)

Investigation of the Lake Shore Copper Deposits, Pinal County, Arizona

Report issued by the U.S. Bureau of Mines on the drilling for copper deposits near Pinal County, Arizona in 1949. Topographic and geologic mapping, drilling, and field tests were studied. Tables, maps, and illustrations are presented.
Date: July 1950
Creator: Romslo, T. M.
System: The UNT Digital Library
Development of a Mobile Compressor and Utility Station (open access)

Development of a Mobile Compressor and Utility Station

Report issued by the U.S. Bureau of Mines on the development of a mobile compressor and utility station in the oil-shale mine near Rifle, Colorado during 1949. The report includes photographs and illustrations of the mobile station.
Date: July 1950
Creator: Wright, Fred D. & Ballinger, Homer J.
System: The UNT Digital Library