a miner working inside a timber-framed tunnel at the Pilares mine in Nacozari, Sonora. On the right, a man in a wide-brimmed hat and work clothes stands with his legs apart, gripping the long handle of a wheeled ore cart tipped toward a pile of broken rock. Heavy wooden posts and beams support the passage, a lamp hangs from one post, and a pipe runs overhead. To the left, a narrow timber-lined corridor recedes into the dark.

Inside the Pilares Mine: Copper Mining, Stoping, and Milling at Nacozari, Mexico (1911)

(Unknown Author) “Most of the underground workers, and many of those on the surface, including machinists and the workmen in the concentrators, are Mexicans.” (1911) – The Pilares mine of the Moctezuma Copper Company is six miles southeast of Nacozari, Sonora, Mex., and about 85 miles south of Douglas, Ariz. The mine takes its name … Sigue leyendo Inside the Pilares Mine: Copper Mining, Stoping, and Milling at Nacozari, Mexico (1911)

Historia de Nacozari