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Avery Rock Light : ウィキペディア英語版 | Avery Rock Light
Avery Rock Light was a lighthouse in Avery Rock, Machias Bay, Maine, United States. It was built on a rocky islet, 110 metres long and 48 metres wide, in the middle of Machias Bay accessible only by boat. The old light was a square tower built in 1875 with gallery and lantern centered on the keeper’s house, in 1926 it was automated and demolished in 1947 after a storm damage.〔 (Coast Guard Lighthouses )〕 It was later built a skeletal tower with a focal plane at that emits a white flash every 6 s. ARLHS USA-024; USCG 1-1145. 〔(Lighthouses Directory )〕 ==References==
* * (History of Avery Rock Lighthouse on New England Lighthouses: A Virtual Guide )
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「Avery Rock Light」の詳細全文を読む
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