Block-caving copper mining methods and costs at the Miami mine, Miami Copper Company, Gila County, Arizona

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Part OfBureau of Mines Information CircularsCreatorW. R. (William R.) HardwickPublisherUnited States Department of the Interior, Bureau of MinesPage Count103Report Number8271DescriptionDiscusses early mining methods with detailed photographs, figures and diagrams.Document TypeFederal DocumentBrowse TopicLaborLand, Environment, and Natural ResourcesScience and TechnologySubjectCopper mines and mining--Arizona--Gila CountyDate Original1965Date Range1960s (1960-1969)TypeTextOriginal FormatReportsLanguageEnglishContributing InstitutionState of Arizona Research Library- Arizona State Library, Archives and Public RecordsCollectionArizona Mines and Minerals - Federal MaterialsFederal Documents CollectionRights StatementWorks by the U. S. Government are not eligible for U. S. copyright protection. In some cases, however, the U.S. Government may have been assigned rights to a work. It is the researcher's obligation to determine and satisfy copyright or other use restrictions when publishing or otherwise distributing materials found in these digital collections. Transmission or reproduction of protected items beyond that allowed by fair use requires the written permission of the copyright owners. Researchers must make their own assessments of rights in light of their intended use.

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Call NumberI 28.27:8271OCLC Numberamp00001707Date Digitized2006-04Digital FormatPDFFile Size5.4 MB