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Open-Pit Copper Mining Methods and Costs at the Bagdad Mine, Bagdad Copper Corporation, Yavapai County, Arizona
Report issued by the U.S. Bureau of Mines discussing the open-pit copper mining of Yavapai County, Arizona. As stated in the summary, "mining methods, including breaking ground, primary drilling and blasting, secondary drilling and blasting, loading, transportation, engineering, and operating control, are described" (p. 1). This report includes tables, maps, illustrations, and photographs.
Date:
1959
Creator:
Hardwick, W. R. & Jones, E. L., III
System:
The UNT Digital Library
Mercury: A Materials Survey
Report issued by the U.S. Bureau of Mines discussing materials surveys conducted on mercury. As stated in the foreword, "the surveys dealing with metals and minerals summarize the demand-supply position in the United States and include information on production, imports, consumption, exports, substitutes, and pertinent history" (p. v). This report includes maps, tables, illustrations, and photographs.
Date:
1959
Creator:
Pennington, James W. & Bailey, Edgar H.
System:
The UNT Digital Library