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草稿:馬丁礁燈塔 (密西根州)

坐标：45°54′48″N 84°8′54″W / 45.91333°N 84.14833°W / 45.91333; -84.14833
维基百科，自由的百科全书
馬丁礁燈塔
地图
位置N Lake Huron, 4.3英里（6.9公里） S of Cadogan Point
坐标45°54′48″N 84°8′54″W / 45.91333°N 84.14833°W / 45.91333; -84.14833
啟用年份1927[1]
塔基crib[1]
構造reinforced concrete & steel[1]
塔形square[1]
標識white with red roof[1]
塔高52英尺（16米）[2]
焦距65英尺（20米）[2]
初始燈器fourth order Fresnel lens[3] (original), 7.9-英寸（200-毫米） acrylic lens[3] (current)
光程13海里（24公里；15英里）[4]
燈號頻率（英语：Light characteristic）FI R 10s[4]
Martin Reef Light Station
最近城市Clark Township, Michigan
占地面积less than one acre
建筑师US Lighthouse Service
MPSLight Stations of the United States MPS
NRHP编号05000743[5]
NRHP收录July 27, 2005




參考資料

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  1. ^ 1.0 1.1 1.2 1.3 1.4 Historic Light Station Information & Photography: Michigan. United States Coast Guard Historian's Office. [June 9, 2012]. 
  2. ^ 2.0 2.1 Inventory of Historic Light Stations Michigan Lighthouses: Martin Reef. National Park Service. [June 10, 2012]. 
  3. ^ 3.0 3.1 引用错误：没有为名为pepper的参考文献提供内容
  4. ^ 4.0 4.1 Light List: Volume VII: Great Lakes (PDF), United States Coast Guard: 117, 2012 
  5. ^ National Register Information System. National Register of Historic Places. National Park Service. 2010-07-09. 

外部連結

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