Round Island Light, Michigan

Round Island Light
Map
LocationMackinac County, Michigan
Coordinates45°50′13.8″N 84°36′59.7″W / 45.837167°N 84.616583°W / 45.837167; -84.616583
Tower
Constructed1895 Edit this on Wikidata
FoundationConcrete pier
ConstructionBrick
Automated1924
Height57 feet (17 m)[1]
ShapeSquare
Markingsred w/ black lantern, trim & attached house w/ red lower & cream upper
HeritageNational Register of Historic Places listed place Edit this on Wikidata
Light
First lit1895
Deactivated1947
Focal height53 feet (16 m)[2]
LensFourth Order Fresnel Lens (original), 12-inch (300 mm) Tideland signal ML-300 acrylic optic[4] (current)
Range16 nautical miles; 29 kilometres (18 mi)
CharacteristicFl W 10 seconds[3]
Round Island Lighthouse
U.S. Coast Guard archive photo
Nearest cityMackinac Island, Michigan
Area0.9 acres (0.36 ha)
NRHP reference No.74000994[5]
Added to NRHPAugust 21, 1974

The Round Island Light, also known as the Old Round Island Point Lighthouse,[6] is a lighthouse located on the west shore of Round Island in the shipping lanes of the Straits of Mackinac,[7] which connect Lake Michigan and Lake Huron.[6][8][9] It was deemed necessary because the island is a significant hazard to navigation in the straits, and was seen as an effective complement to the other lights in the area.[10] Because of its color scheme and form — red stone base and wood tower — it has been likened to an old-fashioned schoolhouse.[11] Ferries regularly pass it on their way to (and from) Mackinac Island, and it is a recognizable icon of the upper Great Lakes.

  1. ^ Pepper, Terry. "Database of Tower Heights". Seeing the Light. terrypepper.com.
  2. ^ Pepper, Terry. "Database of Focal Heights". Seeing the Light. terrypepper.com.
  3. ^ Light List, Volume VII, Great Lakes (PDF). Light List. United States Coast Guard. p. 212.
  4. ^ Tideland Signal acrylic optic, Terry Pepper, Seeing the Light.
  5. ^ "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
  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. ^ Map of Lighthouses in the Mackinac Straits.
  8. ^ Old Round Island Point Light/Round Island Light, Amateur Radio Lighthouse Society USA-706.
  9. ^ Amateur Radio Light House Society, World List of Lights
  10. ^ "Brisson, Steven C. (Mackinac State Historic Parks chief curator), "A brief history of Old Mackinac Point Light," Mackinac Parks". Archived from the original on 2008-08-20. Retrieved 2008-07-02.
  11. ^ Nico Derks. "Lake Huron Lights". Archived from the original on 2006-05-18. The lighthouse looks like a taller version of the old-fashioned American schoolhouse [...]