Tree Point Light

The Tree Point Light is a lighthouse located adjacent to Revillagigedo Channel in Southeast Alaska, United States. It is located near the southernmost point of mainland Alaska.

Tree Point Light
Current lighthouse, completed in 1935
Alaska
LocationRevillagigedo Channel, Alaska
Coordinates54°48′10″N 130°56′02″W
Year first constructed1905 (first)
Year first lit1935 (current)
Automated1969
Foundationconcrete
Constructionreinforced concrete tower
Tower shapesquare tower with lantern attached to oil house
Markings / patternart deco architecture,
white tower, red lantern
Tower height58 feet (18 m)
Focal height86 feet (26 m)
Original lensFourth order Fresnel lens
Current lensVRB-25 lens
Light sourcesolar power
Range9 nautical miles (17 km; 10 mi)
CharacteristicFl W 6s.
obscured from 158° to 318°
Admiralty numberG6002
ARLHS numberALK-012
USCG number6-21840
Managing agentUnited States Coast Guard[1] [2]
Heritageplace listed on the National Register of Historic Places 
Tree Point Lighthouse
Alaska Heritage Resources Survey
Nearest cityKetchikan, Alaska
Area76.5 acres (31.0 ha)
Built1935
ArchitectU.S. Lighthouse Service; D.A. Chase; Edwin Laird
Architectural styleArt Deco, Classical Revival, et al.
MPSLight Stations of the United States MPS
NRHP reference No.04001177[3]
AHRS No.XPR-006
Added to NRHPOctober 27, 2004

History
Original 1904 Lighthouse – USCG archive photo

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, 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.

The lighthouse was listed on the National Register of Historic Places as an historic district in 2004.[3] Its 2003 NRHP nomination stated that it was "the most intact [lighthouse] outpost in the southern section of Southeast Alaska. The listing includes the concrete light and fog-signal building built in 1935, one standing keeper residence, the two original oil houses, the later-period boathouse, and features of the water supply system. In addition, the tramway run is relatively intact." Additional features of a derrick and winch were deemed non-contributing, because they are relatively recent replacements.[4]

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See also

References
  1. Lighthouses of the United States: Alaska The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved 9 June 2016
  2. Alaska Historic Light Station Information & Photography United States Coast Guard. Retrieved 9 June 2016
  3. "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
  4. Robert M. Weaver (February 27, 2003). "National Register of Historic Places Registration: Tree Point Lighthouse / Tree Point Light Station (AHRS Site No. XPR-006)". National Park Service. and accompanying five photos from 2002


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