| 翻訳と辞書 |
| Quincy Mining Company Stamp Mills Historic District ： ウィキペディア英語版 |
Quincy Mining Company Stamp Mills Historic District
The Quincy Mining Company Stamp Mills Historic District is a historic stamp mill (used to crush copper-bearing rock, separating the copper ore from surrounding rock) located on M-26 near Torch Lake, just east of Mason in Osceola Township. It was listed on the National Register of Historic Places in 2007.〔
==Original stamp mill (1860 - 1888)==
The original Quincy Stamp Mill was built in 1860 on Portage Lake〔 in Hancock, close to the Quincy Mine.〔(【引用サイトリンク】 publisher = Keweenaw Free Guide )〕 This facility, however, dumped an enormous amount of sand tailings into the lake, and the sand soon threatened to encroach on the navigable channel of the lake.〔 In the mid-1880s, the federal government set minimum harbor lines and stiff penalties for breaching them, and eventually filed suit against the Quincy Mine for dumping in Portage Lake.〔 In addition, Quincy was in the process of acquiring the nearby Pewabic Mine, and management knew they would need to increase the company's stamping capacity.〔(O'Connell, p. 590 )〕
Stamp mills require a large amount of water to operate, and so are invariably located near a large body of water; this limited the range of sites in which a new mill could be placed.〔(O'Connell, page 567 )〕 After some analysis, the Quincy management decided on Torch Lake as the site for the new mill and purchased 300 acres on the shore,〔(O'Connell, page 597 )〕 some six miles east of the previous location.〔
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「Quincy Mining Company Stamp Mills Historic District」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|