Leading U.S. copper mines based on production volume 2022
The largest copper mine in the United States as of 2022 was the Morenci Mine, located in Greenlee, Arizona. The Morenci Mine, owned by Freeport-McMoRan, produced an estimated 400,670 metric tons of copper that year. The Kennecott Copper Project in Utah, owned by Rio Tinto, came in a distant second, having produced an estimated 179,200 metric tons of copper in 2022.
