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Mount Lyell Mining and Railway Company was a Tasmanian mining company formed on 29 March 1893, most commonly referred to as ''Mount Lyell''. Mount Lyell was the dominant copper mining company of the West Coast from 1893 to 1994, and was based in Queenstown, Tasmania. Following consolidation of leases and company assets at the beginning of the twentieth century, Mount Lyell was the major company for the communities of Queenstown, Strahan and Gormanston. It remained dominant until its closure in 1994. The Mount Lyell mining operations produced more than a million tonnes of copper, 750 tonnes of silver and 45 tonnes of gold since mining commenced in the early 1890s - which is equivalent to over 4 billion dollars worth of metal in 1995 terms.〔The Mount Lyell Mining and Railway Company Limited (1994) ''A Century of Copper'' Queenstown, Tasmania page 2, see also later editions of ''The Peaks of Lyell''〕 == History == In the early stage of operations, Mount Lyell was surrounded by smaller competing leases and companies. Eventually they were all absorbed into Mount Lyell operations, or were closed down. In 1903 the North Mount Lyell company was taken over, and in 1912 the most severe calamity to visit the Mount Lyell company was the 1912 North Mount Lyell Disaster, also known at the time as the North Lyell fire. During its history, Mount Lyell had exploration leases surrounding its main mining area, and had at one time or other explored most of the West Coast Range revisiting many of the smaller mines that had been worked on in the early 1900s. As a consequence the Mount Lyell company had utilised considerable resources on maintaining leases over areas of promising geology - as well as checking older mining locations on the west coast. At various stages it also shared costs and resources with other companies who would assist by investing in exploration by becoming partners in some leases. The operations were conducted in various parts of the Mount Lyell Lease, and in the mid 1970s, prior to reduction in the workforce, "Cape Horn" was located just west of the "Comstock" operation which was on the north side of Mount Lyell, while most of the North Mount Lyell workings were finished, "12 West" was still in operation due to its rich copper ores. "West Lyell open cut" which had been dominant in the 1950s was finished, and various parts of the lease were disappearing into the opening above the "Prince Lyell" workings. Following the first large layoffs in the mid 1970s, the town of Queenstown lost its dominance on the west coast by the mid 1990s, and being mainly a company town many services closed by the 2000s, and the separate west Tasmanian local government authorities were amalgamated into the West Coast Council. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mount Lyell Mining and Railway Company」の詳細全文を読む スポンサード リンク
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