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St. Martin Island Light

 
Location: St. Martin Island near Fairport, MI
Body of Water: Lake Michigan

Local Marine Forecast.

There are no active watches, warnings or advisories 

Latest Condiitions.

About St. Martin Island Light

The location of the light is St. Martin Island. The nearest city is Fairport, MI. The station was first established in 1905. The current lighthouse was first lit in 1905.

The tower has alternating white and red lights at a focal plane height of 84 ft above mean high water. The light has a nominal range of 18 nautical miles. The tower height is 75 ft. The light has a period of 10 seconds.

Open to the Public?: No    Active?: Yes

Identification number: 7-21450 (U.S.)

Light visible from 135 to 355, dark sector covering island. White range 18 nautical miles. Red range 15 nautical miles.

An 'alternating' light is a light showing different colors as it rotates. So in the 10 second period, the light alternates between white and red every 5 seconds.

St. Martin Island Light was listed on the National Register of Historic Places on July 19, 1984, reference number 84001387.

NOTE: Sectors of colored glass are placed in the lanterns of some lights in order to produce a system of light sectors of different colors. In general, red sectors are used to mark shoals or to warn the mariner of other obstructions to navigation or of nearby land. Such lights provide approximate bearing information, since observers may note the change of color as they cross the boundary between sectors.
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