Mining Methods and Costs at the Anaconda Company Berkeley Pit, Butte, Montana (open access)

Mining Methods and Costs at the Anaconda Company Berkeley Pit, Butte, Montana

Report issued by the U.S. Bureau of Mines discussing the mining operations in Montana. As stated in the summary, "this report deals with the design and development of the Berkely open-pit mine Butte, Mont., owned and operated by the Anaconda Company" (p. 1). This report includes tables, maps, illustrations, and photographs.
Date: 1959
Creator: McWilliams, John R.
System: The UNT Digital Library
Safety Cars of the United States Bureau of Mines (open access)

Safety Cars of the United States Bureau of Mines

Report issued by the U.S. Bureau of Mines discussing the mine stations and safety cars used to reach miners in distress. As stated in the report, "the purpose, equipment, personnel, and construction of its safety cars" is presented. This report includes an illustration, and a map.
Date: March 1931
Creator: Forbes, J. J. & Ankeny, M. J.
System: The UNT Digital Library