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Osceola Mines : ウィキペディア英語版 | Osceola Mine The Osceola Mine was a copper mine consisting of 11 shafts〔 located in Osceola Township, Houghton County, Michigan. In 1895, it was the site of the deadliest mine disaster in the Copper Country.〔 ==History== In 1873, the Osceola Mining Company formed working the Calumet Conglomerate. In 1877, the mine discovered the Osceola Amygdaloid. Osceola Mining Company merged with Opechee Mining Company in 1879 to form Osceola Consolidated Mining Company.〔(【引用サイトリンク】url=http://www.mindat.org/loc-17462.html )〕 The company was taken over by the Calumet and Hecla Mining Company in 1909 and merged in 1923. Calumet and Hecla operated the mine until 1931. The mine was reopened in the 1950s and permanently closed in 1968 due to the labor strike that shuttered Calumet and Hecla.〔
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「Osceola Mine」の詳細全文を読む
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