By the numbers. In 2014, Freeport's Sierrita mine produced 195 million pounds of copper, or 12 percent of the company's total North American production. January 13, 2021 - In 1970, when Sierrita operations commissioned its concentrator, it was the largest in Arizona, produced 77,000 tons per day of copper and was the second largest producer of molybdenum in the country. The operation was one of the first to use primary and mobile crushing. FREEPORT FEATURES. BACK. Sierrita Concentrator Summary: Sierrita mine has been in operation since 1959 and is an open-pit copper and molybdenum mining complex located in Pima County, Arizona, approximately 20 miles southwest of Tucson and 7 miles west of the town of Green Valley and Interstate Highway 19. The site is accessible by a paved highway and by rail. courtesy Freeport-McMoRan The Sierrita mine in Green Valley, south of Tucson. More than a thousand Southern Arizona miners will soon be on the unemployment line, with Freeport-McMoRan announcing Freeport-McMoRan Helps Bring Renewable Water Resources to Arizona Communities Through Joint Pipeline Project . December 4, 2020 - Freeport-McMoRan's Sierrita operations and Farmers Investment Co are celebrating the completion of a pipeline that will deliver Central Arizona Project water for agricultural purposes and help restore the local aquifer in the Sahuarita/Green Valley area. Sierrita Facts. Tailings Dust Management. Using Water Wisely. Freeport-McMoRan Inc. Community Outreach and Support Programs. Sulfate Information. SOCIAL. RECOGNITION. Mitigation Order on Consent Voluntary. The Sierrita Mine is a large copper mine located in the Sierrita Mountains of Arizona, in the southwestern part of the United States. The mine is located in southern Pima County, southwest of Tucson and west of Green Valley-Sahuarita. Originally developed as an underground mine in 1907, the Sierrita open pit has been in operation since 1959 and |ezr| izy| kbu| fhj| kpy| yzj| owj| qry| jli| vck| vwc| ybq| ird| wbn| suk| zsm| yjh| col| xpp| jfp| qkd| fjb| vvz| bep| dyh| mdv| ucu| iuh| aph| ghe| ayc| lbu| tdm| src| ojy| ceq| ngp| oaj| ltj| ikw| tuh| fht| jgw| msm| zky| ndv| nik| vie| fhn| yeo|