Newmont Mining Corporation, together with its subsidiaries, engages in the acquisition, exploration, and production of gold and copper properties. The company's assets or operations are located in the United States, Australia, Peru, Indonesia, Ghana, Mexico, and New Zealand. As of December 31, 2012, it had proven and probable gold reserves of approximately 99.2 million ounces and an aggregate land position of approximately 29,000 square miles. The company was founded in 1916 and is headquartered in Greenwood Village, Colorado.