World Mining, 1976, Arizona - 'Don't neglect Safford as major future porphyry copper district': World Mining, v. 29, no. 4, p. 139. Authors World Mining Publication Date 1976 Citation World Mining, v. 29, no. 4, p. 139. State AZ Province BR County GM Placenames Gila Mts.(GM) Keywords Mineral District Porphyry Copper History More Keywords Mineral District, Porphyry Copper, History, AzGeoBib RefNum 11444