Spencer Penrose was an American entrepreneur and philanthropist. He made his fortune from mining, ore processing, and real estate speculation in Colorado and other parts of the West. He founded the Utah Copper Company in 1903, and also established mining operations in Arizona, New Mexico and Nevada.
Penrose
Kennecott Utah Copper LLC (KUC), a division of Rio Tinto Group, is a mining, smelting, and refining company. Its corporate headquarters are located in South Jordan, Utah. Kennecott operates the Bingham Canyon Mine, one of the largest open-pit copper mines in the world in Bingham Canyon, Salt Lake County, Utah. The company was first formed in 1898 as the Boston Consolidated Mining Company. The current corporation was formed in 1989. The mine and associated smelter produce 1% of the world's copper.
Bingham Canyon in 1942
Kennecott Utah Copper's Garfield Smelter, with Interstate 80 in the foreground
Utah Copper Mine, circa 1925, with a view of Main St. in Bingham Canyon. The Auditor lists the total earnings for the mine. Image from the Salt Lake County Auditor Annual Report, 1928.