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Tree Point Light Lighthouse

Fl W 6s🇺🇸Alaska - Dixon Entance, USOperational

Location & Light Range

About Tree Point Light Lighthouse

Constructed from concrete in 1905, Tree Point Light stands as a square tower 20 meters in height. The structure is painted in alternating bands of white, black, and green. Its focal plane is 26 meters above sea level, and it emits a white light with a single flash every 6 seconds. The lighthouse features pipe swing poles and daymarks, which are square and painted green, black, and white. These daymarks face specific directions, indicating 140° and 320° respectively. The geographic range of its light is 9 nautical miles.

Why it matters: This lighthouse is recognized for its historical significance and is listed on the National Register of Historic Places.

Light & Optic

Characteristic Signature
Fl W 6s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
6s
Raw Code
Fl.W. period 6s
Focal Height
26m
Geographic Range
9NM

Construction & History

Year Built
1905
Heritage Status
National Register of Historic Places listed place

References & Identifiers

Admiralty No.
G5984
NGA No.
11156
Wikipedia
Read on Wikipedia →
Wikidata
Q3662067 →
OpenStreetMap
View on OSM →

Tower & Structure

Tower Height
20m
Tower Shape
square
Tower Color
white and black and green
Material
concrete

Structure: Pipe swing pole, green, black and white square daymarks facing 140° and 320°; 20

Location

City
Alaska - Dixon Entance
Country
🇺🇸US
Latitude
54.8027°
Longitude
-130.9363°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Tree Point Light Lighthouse at night?+
Tree Point Light displays the characteristic Fl W 6s — 1 white flash every 6 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area.
Which ports and harbors does Tree Point Light Lighthouse guide vessels into?+
Tree Point Light Lighthouse assists vessels approaching 5 nearby ports. The closest is Port Simpson at 22.5 NM to the SE. Other ports served include Metlakatla (29.1 NM NW), Annette Island (35.3 NM NW), Prince Rupert (35.9 NM SE), Ketchikan (41.8 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Tree Point Light Lighthouse still active and maintained?+
Yes, Tree Point Light Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
How can I track vessels near Tree Point Light Lighthouse?+
You can track vessels near Tree Point Light Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.