Copper Kings
The Copper Kings were industrialists Marcus Daly, William A. Clark, James Andrew Murray and F. Augustus Heinze. They were known for their struggles over control of the local copper mining industry in Butte, Montana, and the surrounding region, during the Gilded Age.
The battles between Clark, Daly, Murray and Heinze, and later between just Heinze and industrialist financiers William Rockefeller and Henry H. Rogers are a large chapter in Montana history. Eventually, Daly's original company, known as Anaconda Copper emerged as a monopoly, expanding into the fourth largest company in the world by the late 1920s.