McEwen Mining Inc. (MUX) is primarily engaged in the discovery, development, extraction, and sale of gold and silver deposits across the United States, Canada, Mexico, and Argentina. The company also conducts exploration for copper reserves. Its portfolio includes full ownership of several key assets: the Gold Bar mine in Eureka County, Nevada; the Black Fox gold mine located in Ontario, Canada; the El Gallo Project and the Fenix silver-gold project, both situated in Sinaloa, Mexico; and the Los Azules copper deposit in San Juan, Argentina.