Add to ORKGReport issued by the Bureau of Mines over mining districts in Colorado. As noted in the introduction, "in this report the physical features, climate, and ore deposits of the districts are described, and a brief history of mining and production of lead, zinc, and silver is given" (p. 4). This report includes tables, illustrations, and maps
Three maps illustrating distribution of metal deposits in metal-mining districts in Colorado. The fi...
Report issued by the Bureau of Mines regarding studies conducted on iron deposits located in Meagher...
Report issued by the U.S. Bureau of Mines on the West Belt copper-zinc mines. The properties and cha...
Report issued by the Bureau of Mines over exploration of lead-zinc deposits in Colorado. The geology...
Report issued by the U.S. Bureau of Mines discussing metal mines in Colorado. As stated in the summa...
Report issued by the Bureau of Mines over exploration of the lead and zinc deposits of the Madonna M...
Report issued by the Bureau of Mines over studies conducted on the zinc-lead deposits in Cherokee Co...
Report issued by the Bureau of Mines over studies conducted on lead-zinc deposits of Montana. The re...
Report issued by the Bureau of Mines over studies of zinc-lead reserves in the tri-state area. The r...
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 investigations on the McCormick chromite mine. Description...
Report issued by the U.S. Bureau of Mines discussing the mining costs and methods of uranium ores in...
Report issued by the U.S. Bureau of Mines discussing mining practices conducted in the tri-state dis...
Report issued by the U.S. Bureau of Mines discussing uranium mining methods. As stated in the introd...
Report issued by the Bureau of Mines over tungsten deposits of Montana. Details of the different dep...
Three maps illustrating distribution of metal deposits in metal-mining districts in Colorado. The fi...
Report issued by the Bureau of Mines regarding studies conducted on iron deposits located in Meagher...
Report issued by the U.S. Bureau of Mines on the West Belt copper-zinc mines. The properties and cha...
Report issued by the Bureau of Mines over exploration of lead-zinc deposits in Colorado. The geology...
Report issued by the U.S. Bureau of Mines discussing metal mines in Colorado. As stated in the summa...
Report issued by the Bureau of Mines over exploration of the lead and zinc deposits of the Madonna M...
Report issued by the Bureau of Mines over studies conducted on the zinc-lead deposits in Cherokee Co...
Report issued by the Bureau of Mines over studies conducted on lead-zinc deposits of Montana. The re...
Report issued by the Bureau of Mines over studies of zinc-lead reserves in the tri-state area. The r...
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 investigations on the McCormick chromite mine. Description...
Report issued by the U.S. Bureau of Mines discussing the mining costs and methods of uranium ores in...
Report issued by the U.S. Bureau of Mines discussing mining practices conducted in the tri-state dis...
Report issued by the U.S. Bureau of Mines discussing uranium mining methods. As stated in the introd...
Report issued by the Bureau of Mines over tungsten deposits of Montana. Details of the different dep...
Three maps illustrating distribution of metal deposits in metal-mining districts in Colorado. The fi...
Report issued by the Bureau of Mines regarding studies conducted on iron deposits located in Meagher...
Report issued by the U.S. Bureau of Mines on the West Belt copper-zinc mines. The properties and cha...