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Daniel C. Jackling
__NOTOC__Daniel Cowan Jackling (August 14, 1869 – March 13, 1956), was an American mining and metallurgical engineer who pioneered the exploitation of low-grade porphyry copper ores at the Bingham Canyon Mine, Utah.
==Career==
Daniel Jackling was educated in mining and metallurgy disciplines at the Missouri School of Mines in Rolla, Missouri, now known as Missouri University of Science and Technology. In 1898, Jackling and Robert C. Gemmell made a detailed examination of the Bingham Canyon copper property. They recommended open pit mining, using steam shovels to load railroad cars, a novel idea at the time. In 1903, Jackling organized the Utah Copper Company to put his plan into action. The mine proved to be profitable, and open-pit mining of low-grade copper deposits came to dominate the industry by mid-century.
Jackling went on to a very successful and lucrative career as a manager and executive for many copper companies, including the Utah Copper Company, in the Western U.S. He was honored with numerous professional awards, including the Washington Award from the Western Society of Engineers for "pioneering in large-scale mining and treatment of low-grade copper ores, releasing vast resources from formerly worthless deposits."〔(National Mining Hall of Fame: Jackling entry )〕
His collected papers were given to the Stanford University Library.〔(Guide to the Daniel C. (Daniel Cowan) Jackling Papers, 1911-1956 ), Stanford University Library, Special Collections〕
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