Guard Island Light
Encyclopedia
The Guard Island Light is a lighthouse
located on a small island near the entrance to the Tongass Narrows, in Clarence Strait
in southeastern Alaska
. The western entrance to the Behm Canal
also lies nearby.
that produced a fixed white light. However, the wood used for Guard Island Light Station, as well as for several other Alaskan lighthouses, soon deteriorated in the harsh weather conditions. By the 1920s, all the lighthouses except Eldred Rock
were falling apart, and in 1922, Congress authorized the reconstruction of Guard Island Light. In 1924, the dilapidated light tower was replaced with a new single-story rectangular tower of reinforced concrete. The station was automated by the Coast Guard
in 1969. It is believed to be the largest light house in that exact location, but this has yet to be reliably proven.
Lighthouse
A lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses or, in older times, from a fire, and used as an aid to navigation for maritime pilots at sea or on inland waterways....
located on a small island near the entrance to the Tongass Narrows, in Clarence Strait
Clarence Strait
Clarence Strait, originally Duke of Clarence Strait, is a strait in southeastern Alaska, in the United States in the Alexander Archipelago. The strait separates Prince of Wales Island, on the west side, from Revillagigedo Island and Annette Island, on the east side...
in southeastern Alaska
Alaska Panhandle
Southeast Alaska, sometimes referred to as the Alaska Panhandle, is the southeastern portion of the U.S. state of Alaska, which lies west of the northern half of the Canadian province of British Columbia. The majority of Southeast Alaska's area is part of the Tongass National Forest, the United...
. The western entrance to the Behm Canal
Behm Canal
Behm Canal is a channel in the Alexander Archipelago, in the southeastern part of the U.S. state of Alaska.About long, Behm Canal separates Revillagigedo Island from the mainland...
also lies nearby.
History
Construction of the Guard Island Lighthouse began in the summer of 1903 and was completed by September 1904. The 34 feet (10.4 m) wooden tower housed a fourth order Fresnel lensFresnel lens
A Fresnel lens is a type of lens originally developed by French physicist Augustin-Jean Fresnel for lighthouses.The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design...
that produced a fixed white light. However, the wood used for Guard Island Light Station, as well as for several other Alaskan lighthouses, soon deteriorated in the harsh weather conditions. By the 1920s, all the lighthouses except Eldred Rock
Eldred Rock Light
The Eldred Rock Light is an historic octagonal lighthouse adjacent to Lynn Canal in Alaska. It is the last of the ten lighthouses constructed in Alaska between 1902 and 1906...
were falling apart, and in 1922, Congress authorized the reconstruction of Guard Island Light. In 1924, the dilapidated light tower was replaced with a new single-story rectangular tower of reinforced concrete. The station was automated by the Coast Guard
United States Coast Guard
The United States Coast Guard is a branch of the United States Armed Forces and one of the seven U.S. uniformed services. The Coast Guard is a maritime, military, multi-mission service unique among the military branches for having a maritime law enforcement mission and a federal regulatory agency...
in 1969. It is believed to be the largest light house in that exact location, but this has yet to be reliably proven.