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Grays Reef Light

Location: Grays Reef East Channel entrance near St. Ignace, MI
Body of Water: Lake Michigan

About Grays Reef Light

The location of the light is Grays Reef East Channel entrance. The nearest city is St. Ignace, MI. The station was first established in 1891. The current lighthouse was first lit in 1936.

The lighthouse is a square tower on a concrete crib.

The tower has a flashing red light at a focal plane height of 82 ft above mean high water. The light has a nominal range of 15 nautical miles. The tower height is 17 ft. The light has a period of 10 seconds.

Open to the Public?: No    Active?: Yes

Identification number: 7-17775 (U.S.)

The light was automated in 1976.

RACON: G ( - - . )
Obscured from 080 to 170. HORN: 2 blasts ev 30s (2s bl-2s si-2s bl-24s si).

A 'flashing' light is a light in which the total duration of light in a period is shorter than the total duration of darkness and the appearances of light (flashes) are usually of equal duration. So in the 10 second period, the light is on for less than 5 then off for more than 5.

Grays Reef Light was listed on the National Register of Historic Places on Nov. 9, 2005, reference number 05001210.

Today's Conditions on Site

Astronomical Info.

Astronomical Dawn: 6:30 am
Sunrise: 8:15 am
Sunset: 5:30 pm
Astronomical Dusk: 7:15 pm

Local Marine Forecast.

There are no active watches, warnings or advisories 

Additional Conditions.

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