It’s hard to imagine the scale of the Morenci Mine in the southeast portion of the state, but you can get really close to it. Literally.
Take a drive along U.S. Highway 191, and one of the world’s largest open-pit copper mines and leaching operations resembles the Grand Canyon in its multi-hued red rock expanses, layered and intricate and spell-binding. The road, which roughly follows the same path as the Coronado Expedition of 1540 from Mexico to the fabled Seven Cities of Cibola, winds through the middle of it.
You think you see Fray Marcos de Niza on horseback in the distance, and then, another detonation from the miners below shakes you back to reality. Boom! Monster bulldozers and dump trucks, four or five times the size of the ones we see in the city, scoop up loosened earth and haul it off for processing.