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Date: 2014-12-22 12:38:37Resolution Copper ASARCO BHP Billiton Copper extraction techniques Copper mining in the United States Mining Phelps Dodge Copper mining in Arizona | Microsoft Word - USGSAzSumOf2003.docAdd to Reading ListSource URL: repository.azgs.az.govDownload Document from Source WebsiteFile Size: 31,81 KBShare Document on Facebook |