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Keeley-Frontier Mine : ウィキペディア英語版 | Keeley-Frontier Mine
Keeley-Frontier Mine is a large abandoned mine in the ghost town of Silver Centre, Northeastern Ontario, Canada. It consists of two underground mines that were sunk below the surface. Keeley Mine was discovered in 1907 while Frontier Mine was constructed in 1921. The sixth level of Keeley Mine connected with Frontier Mine in 1962, creating the two compartment Keeley-Frontier Mine. In 1965, Keeley-Frontier Mine closed with a total production of of silver, of cobalt, of nickel and of copper.〔(Keeley-Frontier Mine (Canadian Keeley; Frontier Mine; Keeley Mine), South Lorrain Township, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada )〕 Keeley-Frontier Mine is considered to have produced some of the finest silver wire specimens in Canada.〔(http://www.themineralgallery.com/silver4.htm )〕 ==See also==
*List of mines in Ontario
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「Keeley-Frontier Mine」の詳細全文を読む
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