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Wolverine Copper Mining Company : ウィキペディア英語版 | Wolverine Copper Mining Company The Wolverine Mine was small copper mining operation in the Keweenaw Peninsula of Michigan, that was in operation from January 1882 until November 1884. In August 1890, possession of the company was obtained and reorganized as the Wolverine Copper Mining Company. It mined the Kearsarge lode until 1922 when it closed. ==Re-establishment==
Many repairs and editions had to be made in order to get the mine up and running, including extensive repairs to the stamp mill, including the laying of a new steel roof and water-ways. In addition the mine was flooded up to the first level. Work to remove the water lasted from October 7 to December 1, 1890. By December 20, 1890, a few drills were put into operation and work increased from then on.
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「Wolverine Copper Mining Company」の詳細全文を読む
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