McEwen Mining Inc. explores for, develops, produces, and sells precious and base metals in Argentina, Mexico, and the United States. It primarily explores for gold, silver, and copper. The company’s principal assets consist of a 49% interest in the San José Mine in Santa Cruz, Argentina; the El Gallo 1 mine and El Gallo 2 project in Sinaloa, Mexico; the Gold Bar project in Nevada, the United States; and the Los Azules copper project in San Juan, Argentina. As of December 31, 2014, it had an aggregate land position consisting primarily of mining claims, leases of mining claims, or concessions, which covered an area of approximately 814 square miles in Argentina; 697 square miles in Mexico; and 241 square miles in Nevada. The company was formerly known as US Gold Corporation and changed its name to McEwen Mining Inc. in January 2012. McEwen Mining Inc. was founded in 1979 and is headquartered in Toronto, Canada.