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Libby Island Light

Location: On Libby Island at the entrance to Machias Bay near Machiasport, ME
Photo by: U. S. Fish and Wildlife Service - Northeast Region
Source: Flickr Creative Commons

Local Marine Forecast.

There are no active watches, warnings or advisories 

About Libby Island Light

The location of the light is On Libby Island at the entrance to Machias Bay. The nearest city is Machiasport, ME. The station was first established in 1822. The current lighthouse was first lit in 1822.

The lighthouse is a unpainted stone tower.

The tower has a flashing white light at a focal plane height of 91 ft above mean high water. The light has a nominal range of 18 nautical miles. The tower height is 91 ft. The light has a period of 20 seconds.

Open to the Public?: No    Active?: Yes

Identification number: 1-1120 (U.S.)

Emergency light of reduced intensity when main light is extinguished.
HORN: 1 blast ev 15s (2s bl)

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 20 second period, the light is on for less than 10 then off for more than 10.

Libby Island Light was listed on the National Register of Historic Places on June 18, 1976, reference number 76000117.

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