Yes. The U.S. Army Corps of Engineers approved a project by ASARCO (American Smelting and Refining Company), a U.S. subsidiary of Grupo Mexico, to support its copper mine operation south of State Route 177 in Pinal County, which includes a tailings storage facility.
Author Archives: Mia Osmonbekov
Mia Osmonbekov is a fact-checker for the Arizona Center for Investigative Reporting, working in partnership with Gigafact.