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Mary Island Light

Location: northeastern part of Mary Island in Revillagigedo Channel near Metlakatla, AK

Local Marine Forecast.

Small Craft Advisory 
Southeast Alaska Coastal Waters from Dixon Entrance to Cape Suckling out 100 NM Wind forecasts reflect the predominant speed and direction expected. Seas forecasts represent the average of the highest one-third of the combined windwave and swell height. ...SMALL CRAFT ADVISORY DUE TO SEAS THROUGH TUESDAY...

About Mary Island Light

The location of the light is northeastern part of Mary Island in Revillagigedo Channel. The nearest city is Metlakatla, AK. The station was first established in 1903. The current lighthouse was first lit in 1937.

The lighthouse is a white art deco square tower.

The tower has a flashing white light at a focal plane height of 76 ft above mean high water. The light has a nominal range of 6 nautical miles. The tower height is 61 ft. The light has a period of 6 seconds.

Open to the Public?: No    Active?: Yes

Identification number: 6-21940 (U.S.)

In 1969, the station was automated and its radio beacon was removed. The light is obscured from 341 to 150.

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 6 second period, the light is on for less than 3 then off for more than 3.

Mary Island Light was listed on the National Register of Historic Places on July 8, 2005, reference number 05000645.

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