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}} The Grand Marais Harbor of Refuge Inner and Outer Lights are a pair of lighthouses located on the west pier at the entry to Grand Marais Harbor of Refuge, in Grand Marais, Michigan. They were listed on the National Register of Historic Places in 2012.〔 ==History: Harbor and light construction== In the 1870s, shipping traffic through Lake Superior increased tremendously.〔(【引用サイトリンク】 publisher = Seeing The Light )〕 Realizing the lack of a safe harbor between Whitefish Bay and Grand Island, the Army Corps of Engineers began upgrading the harbor at Grand Marais in 1881. Over the next ten years, the Corps dredged the harbor and constructed a timber pile breakwater stretching across the harbor. A shipping channel was dredged into the harbor, and two timber crib piers long were built to each side of the channel.〔 These piers were extended one section at a time.〔 As the work on the harbor neared completion, the Lighthouse Board decided that navigation into the harbor would be improved by the addition or a light and fog signal on the head of the western pier.〔 They requested funding for a light in 1892, and Congress allocated funds in 1895. The Board quickly drew up plans and awarded contracts to build a prefabricated light, and the new tower light was in place by November 1895. A fog signal originally located at the Point Iroquois Light was transferred to Grand Marais, and no keeper's quarters were built, causing the project to be significantly under budget (although the keeper was reduced to living in a "temporary" shanty).〔 Realizing that the addition of a rear range light would improve navigation, the Lighthouse Board requested that the unused funds be re-appropriated toward constructing a second light.〔 Congress agreed in 1897, and by 1898 the second light was fabricated and installed at the inner end of the pier.〔 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「Grand Marais Harbor of Refuge Inner and Outer Lights」の詳細全文を読む スポンサード リンク
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