Tree Point Light
Encyclopedia
The Tree Point Light is a lighthouse
located adjacent to Revillagigedo Channel
in southeastern Alaska
, USA. It is located near the southernmost point of mainland Alaska.
. In 1969 it was automated. The Fresnel lens was replaced with a lens mounted outside the lantern room. In the summer of 1977 the lens on the gallery was replaced with a modern, solar-powered VRB-25 Vega lens placed back inside the lantern room.
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 adjacent to Revillagigedo Channel
Revillagigedo Channel
Revillagigedo Channel is an ocean channel in the Alexander Archipelago of the U.S. state of Alaska. Extending 56 km northwest from the Dixon Entrance, it lies between the mainland to the east, Revillagigedo Island to the north, and Duke Island and Annette Island to the southwest...
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...
, USA. It is located near the southernmost point of mainland Alaska.
History
The Lighthouse Board approved the construction of the Tree Point Lighthouse on April 24, 1903, and just over a year later the light was activated on April 30, 1904. The lighthouse was the first, and only lighthouse, to be built on mainland Alaska. In the early 1930s, the Bureau of Lighthouses authorized reconstruction of the station with reinforced concrete. Work began in 1933 and was completed in 1935. The 1935 lighthouse was equipped with a fourth-order Fresnel lens, which is now displayed at the Tongass Historical Museum in Ketchikan, AlaskaKetchikan, Alaska
Ketchikan is a city in Ketchikan Gateway Borough, Alaska, United States, the southeasternmost sizable city in that state. With an estimated population of 7,368 in 2010 within the city limits, it is the fifth most populous city in the state....
. In 1969 it was automated. The Fresnel lens was replaced with a lens mounted outside the lantern room. In the summer of 1977 the lens on the gallery was replaced with a modern, solar-powered VRB-25 Vega lens placed back inside the lantern room.