Sierrita mine
 | This article needs to be updated. (January 2017) |
 The mines on the east flank of the Sierrita Mountains south of Tucson, Arizona. The Sierrita mine is at the bottom right of the image (north is to the left). | |
| Location | |
|---|---|
| Pima County, Arizona | |
| Country | United States |
| Production | |
| Products | Copper, molybdenum, rhenium |
The Sierrita Mine is a large copper mine located in the Sierrita Mountains of Arizona, in the southwestern part of the United States. Sierrita was operated by Phelps Dodge until 2007 when it was acquired by Freeport-McMoRan. The mine represents one of the largest copper reserves in the United States and in the world. The deposit had estimated reserves (in 2006) of 907 million metric tons of ore grading 0.26% copper and 0.03% molybdenum along with additional 2.4 billion tons at 0.21% copper and 0.02% molybdenum.[1]
The mine is located in southern Pima County, southwest of Tucson and west of Green Valley-Sahuarita.
References
- ^ Minerals Yearbook, 2006, V. 2, Area Reports, Domestic; U. S. Department of the Interior, p. 5-2