Kinross Gold Corporation (Kinross) is engaged in gold mining and related activities, including exploration and acquisition of gold-bearing properties, the extraction and processing of gold-containing ore, and reclamation of gold mining properties. Kinross also produces and sells silver. Kinross' gold production and exploration activities are carried out principally in Canada, the United States, the Russian Federation, Brazil, Ecuador, Chile, Ghana and Mauritania. The Company's gold is produced in the form of dore, which is shipped to refineries for final processing. Kinross also produces and sells silver. The Company's segments include Fort Knox, Round Mountain, Kettle River-Buckhorn, Kupol, Paracatu, Crixas, La Coipa, Maricunga, Tasiast and Chirano. As of December 31, 2011, Kinross' total estimated proven and probable mineral were 62.6 million ounces of gold.