Gull Rock Light Station

Not to be confused with Gull Rocks Light at Newport harbor, Rhode Island.
Gull Rock Light Station
Undated USCG photo.
Map
LocationWest of Manitou Island, Grant Township, Keweenaw County, Michigan
Coordinates47°25′2″N 87°39′49″W / 47.41722°N 87.66361°W / 47.41722; -87.66361
Tower
Constructed1867
ConstructionBrick
Automated1913
Height46 feet (14 m)[2]
ShapeSquare brick tower with cast iron lantern room.[5] and gallery attached church-style” to 2-story brick Light keeper's house[6]
Markingswhite[7] with black lantern and red roof on house
HeritageNational Register of Historic Places listed place Edit this on Wikidata
Light
First lit1867[1]
Focal height50 feet (15 m)[3]
LensFourth order Fresnel lens[8] (original), 9.8-inch (250 mm) Tideland Signal acrylic lens (current)
Range7.8 nautical miles; 14 kilometres (9 mi)[4]
Characteristic2 white flashes every 5 seconds. 0.4s fl 0.6s ec. 0.4s fl 3.6s ec.[4]
Gull Rock Light Station
Nearest cityCopper Harbor, Michigan
MPSU.S. Coast Guard Lighthouses and Light Stations on the Great Lakes TR
NRHP reference No.84001751[9]
Added to NRHPJuly 19, 1984

The Gull Rock Light Station is an active lighthouse located on Gull Rock, just west of Manitou Island, off the tip of Michigan's Keweenaw Peninsula in Lake Superior. The light was listed on the National Register of Historic Places in 1984,[9] even as its condition deteriorated, resulting in its placement on the Lighthouse Digest Doomsday List.[6]

  1. ^ Roach, Jerry. The Ultimate Guide to Upper Michigan Lighthouses. Bugs Publishing, 2007. ISBN 978-0-9747977-2-4.
  2. ^ "Terry Pepper, List of Tower Height". Archived from the original on 2000-09-18. Retrieved 2009-09-01.
  3. ^ "Terry Pepper, List of focal Planes". Archived from the original on 2008-08-30. Retrieved 2009-09-01.
  4. ^ a b Light List, Volume VII, Great Lakes (PDF). Light List. United States Coast Guard.
  5. ^ Edin, Colt & Wobser, David Gull Rock Light Archived 2010-03-23 at the Wayback Machine, boatnerd.com.
  6. ^ a b Rowlett, Russ. "Lighthouses of the United States: Michigan's Eastern Upper Peninsula". The Lighthouse Directory. University of North Carolina at Chapel Hill.
  7. ^ But see, "yellow" at Gull Rock Lighthouse from the Michigan Lighthouse Conservancy.
  8. ^ Pepper, Terry. "Database of Original Lenses". Seeing the Light. terrypepper.com. Archived from the original on 2000-09-18. Retrieved 2010-01-06.
  9. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.