In 1881 Marcus Daly discovered the copper vein that began copper mining in Butte, Montana. The Anaconda Copper Mining Company was a major international producer of copper and copper by-products from the 1880s to the 1970s.įrom the description of Anaconda Copper Mining Company Records, 1876-1976. Montana-based copper mining and smelting company. The Anaconda Copper Mining Company also owned limestone quarries at Albright to supply the smelter limestone for fluxing.įrom the description of Anaconda Copper Mining Company records, 1904-1980. In 1911 it became the Brick Department of the Anaconda Copper Mining Company. The Boston and Montana Brick Company was originally the Coombs and King Brick Company. The Portage Land Company, incorporated in 1911, was initially the overseer of the Boston and Montana properties, but also had ranching operations on almost 6000 acres in Cascade County and over 500 acres in Chouteau County. Over the years the operations in Great Falls changed from copper concentration and smelting to copper refining, and the production of zinc, cadmium, rods, wire, and cable. The facilities were rebuilt and enlarged in 19. The operation became part of the Anaconda Copper Mining Company in 1910, becoming the Great Falls Reduction Department of the company. By 1893 the company had a concentrator, roasting furnaces, reverberatory smelting furnaces, converters, an electrolytic copper refinery, and a furnace refinery on the site. WorldCat record id: 432630150Įarly in 1891 the Boston and Montana Consolidated Silver Mining Company broke ground for a copper reduction works on the north bank of the Missouri River just outside Great Falls, to treat ore from the company's Butte mines. The Anaconda Company shut down its operations in Butte in 1983.įrom the description of. From 1895 to 1960 the Butte mine had produced almost fifteen billion pounds of copper. Production of primary copper from company mines in 1959 totaled 980,399,000 pounds. New methods were introduced to increase the output of mines already in use. In 1945 Anaconda embarked on a program of expansion, rehabilitation, and improvement. Both world wars created huge booms in production for the company. In 1917 there was a general miners' strike, and much worker/owner tension stirred up by the war, the I.W.W., and the fear of sabotage. In 1903 nearly three-quarters of the wage earners in the state were either directly or indirectly working for the company. The Anaconda Company dominated the early industrial history of Montana. 1955 the company's name was changed to The Anaconda Company. In 1960 it had produced three billion dollars worth of ore all told. The Butte district has produced more copper and silver than any other district in the world. These deposits are some of the richest mineral deposits ever discovered. The ore bodies in Butte include gold, silver, copper, zinc, and manganese, and were extracted by underground mining. In 1881 Marcus Daly discovered the copper vein that began copper mining in Butte. The Anaconda Company shut down its operations in Butte in 1983.įrom the guide to the Anaconda Copper Mining Company purchases ledger, 1917, (University of Montana-Missoula Maureen and Mike Mansfield Library Archives and Special Collections) In April 1955 the company's name was changed to The Anaconda Company. The Anaconda Copper Mining Company was organized on Jin Butte and it dominated the early industrial history of Montana.
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