De Kalb, Courtenay, 1918, Ajo Copper Mine--II: Mining and Scientific Press, v. 116, January 26, 1918, p. 153-156. Authors De Kalb, Courtenay Publication Date 1918 Citation Mining and Scientific Press, v. 116, January 26, 1918, p. 153-156. State AZ Province BR County PM Placenames Little Ajo Mts. Keywords Mineral District Porphyry Copper History Mining Engineering More Keywords Mineral District, Porphyry Copper, History, Mining Engineering, AzGeoBib RefNum 15523
