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Morenci, Arizona. Copper concentrating plant of the Phelps Dodge mining corporation where copper ore is processed
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Morenci, Arizona. A huge electric shovel in operation at an open-pit copper mine of the Phelps Dodge mining corporation
Morenci, Arizona. Loading copper ore from an open-pit mine on an ore train on its way to the smelter plant of the Phelps Dodge mining corporation
Morenci, Arizona. Loading copper ore from an open-pit mine on an ore train on its way to the smelter plant of the Phelps Dodge mining corporation