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
Report issued by the U.S. Bureau of Mines over practices of metal mining. As stated in the introduct...
Report issued by the Bureau of Mines over diamond-drilling projects in Salt Lake County. The geology...
Report issued by the Bureau of Mines over explorations to find prospective copper mines near Valdez,...
Report issued by the U.S. Bureau of Mines discussing copper mining methods and costs in Gila County,...
Report issued by the U.S. Bureau of Mines discussing mining methods in Arizona mines. As stated in t...
Report issued by the U.S. Bureau of Mines discussing the mining, milling, and smelting practices of ...
Report issued by the U.S. Bureau of Mines discussing the mining practices and expenses of the United...
Report issued by the Bureau of Mines over drilling and sampling of the San Manuel copper mine in Ari...
Report issued by the U.S. Bureau of Mines discussing the mining costs and methods of the Regal asbes...
This item was digitized from a paper original and/or a microfilm copy. If you need higher-resolution...
Report issued by the U.S. Bureau of Mines discussing surveys conducted on copper. Physicality, miner...
Report issued by the U.S. Bureau of Mines discussing mining and milling conducted in Hyde Park, Verm...
Report issued by the Bureau of Mines regarding studies conducted on lead-zinc mines in Stevens Count...
Report issued by the Bureau of Mines over rock quarries in the United States. As stated in the intro...
Open-Pit Mining Methods and Practices at the Chino Mines Div., Kennecott Copper Crop., Grant County,...
Report issued by the U.S. Bureau of Mines over practices of metal mining. As stated in the introduct...
Report issued by the Bureau of Mines over diamond-drilling projects in Salt Lake County. The geology...
Report issued by the Bureau of Mines over explorations to find prospective copper mines near Valdez,...
Report issued by the U.S. Bureau of Mines discussing copper mining methods and costs in Gila County,...
Report issued by the U.S. Bureau of Mines discussing mining methods in Arizona mines. As stated in t...
Report issued by the U.S. Bureau of Mines discussing the mining, milling, and smelting practices of ...
Report issued by the U.S. Bureau of Mines discussing the mining practices and expenses of the United...
Report issued by the Bureau of Mines over drilling and sampling of the San Manuel copper mine in Ari...
Report issued by the U.S. Bureau of Mines discussing the mining costs and methods of the Regal asbes...
This item was digitized from a paper original and/or a microfilm copy. If you need higher-resolution...
Report issued by the U.S. Bureau of Mines discussing surveys conducted on copper. Physicality, miner...
Report issued by the U.S. Bureau of Mines discussing mining and milling conducted in Hyde Park, Verm...
Report issued by the Bureau of Mines regarding studies conducted on lead-zinc mines in Stevens Count...
Report issued by the Bureau of Mines over rock quarries in the United States. As stated in the intro...
Open-Pit Mining Methods and Practices at the Chino Mines Div., Kennecott Copper Crop., Grant County,...
Report issued by the U.S. Bureau of Mines over practices of metal mining. As stated in the introduct...
Report issued by the Bureau of Mines over diamond-drilling projects in Salt Lake County. The geology...
Report issued by the Bureau of Mines over explorations to find prospective copper mines near Valdez,...