By H. B. Layton The Pilares mine, owned by Phelps, Dodge & Co. is reckoned as the greatest in America. (1900) – The colossal copper mining and milling enterprise of Phelps, Dodge & Co. of New York at the near Placeritos de Nacozari, Sonora, Mexico, ninety-eight miles south of Bisbee, Arizona, is nearly ready for … Sigue leyendo Work Accomplished by the Moctezuma Copper Company at Nacozari, Sonora (1900)