Forty Mile Point Light

Forty Mile Point Light
Forty Mile Point Light
Map
LocationRogers Township, Michigan
Coordinates45°29′12″N 83°54′48″W / 45.48667°N 83.91333°W / 45.48667; -83.91333
Tower
Constructed1896
FoundationLimestone
ConstructionBrick
Automated1969
Height52 feet (16 m)
ShapeSquare
Markingswhite w/black lantern
HeritageNational Register of Historic Places listed place, Michigan state historic site Edit this on Wikidata
Light
First lit1897
Focal height66 feet (20 m)
LensFourth order Fresnel lens
Range16 nautical miles (30 km; 18 mi)
Characteristicwhite 3 second flash every 6 seconds.[1]
Forty Mile Point Light
NRHP reference No.84001830[2]
Added to NRHPJuly 19, 1984

Forty Mile Point Light is a lighthouse in Presque Isle County near Hammond Bay on the western shore of Lake Huron in Rogers Township, Michigan USA.

Unlike many Great Lakes lighthouses, Forty Mile Point Light does not mark a significant harbor or river mouth. Rather, it was constructed with the intent that as one sailed from Mackinaw Point to the Saint Clair River, one would never be out of viewing range of a lighthouse.[3] The light is named because it is on 40 mile Point which is 40 miles (64 km) sailing distance from Old Mackinaw Point.

It is part of U.S. Coast Guard District No. 9.[4]

  1. ^ Light List, Volume VII, Great Lakes (PDF). Light List. United States Coast Guard.
  2. ^ "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009. Archived from the original on July 25, 2008. Retrieved August 3, 2010.
  3. ^ Detroit News, Interactive map on Michigan lighthouses.
  4. ^ National Park Service, Maritime Heritage Project, 40 Mile Point Light.