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The rich Santa Rita copper mine in New Mexico was a principal target of Mangas Coloradas and his followers. In 1838, 22 fur trappers were killed nearby and the Apache severed the mine's supply line. In 1838, 22 fur trappers were killed nearby and the Apache severed the mine's supply line.
The mine was started as the Chino Copper Company in 1909 by mining engineer John M. Sully and Spencer Penrose, [1] [2] [3] and is currently owned and operated by Freeport-McMoRan Inc. subsidiaries. The area where the mine is located is at an average elevation of 5,699 feet (1,737 m).
The Old Copper Complex of the Western Great Lakes is the best known, and can be dated as far back as 9,500 years ago. [4] [1] Great Lakes natives of the Archaic period located 99% pure copper near Lake Superior, in veins touching the surface and in nuggets from gravel beds.
The boleta system was eased out after the DCC was acquired by Phelps Dodge. As with many mines in Arizona and New Mexico at the time, the Detroit Copper Co. saw several waves of labor union organizing as well as strikes from 1900 onward. [8] DCC used labor spies to infiltrate nascent unions and stop organizing campaigns. [9]
Refining at the mines as well as at a copper refinery in Amarillo, Texas, produce 375,000,000 pounds (170,000,000 kg) of refined copper each year. ASARCO's hourly workers are primarily represented by the United Steelworkers. ASARCO has 20 superfund sites across the United States, and it is subject to considerable litigation over pollution.
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This process is the basis for all modern leaching (or solvent) processes used in copper mines around the world. [14] [15] [16] He later flirted with California oil projects, Chilean copper mines, and Chihuahua, Mexico railroads and silver-lead mines, but his great works had been completed.
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