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Eldred Rock Lighthouse

Fl W 6s🇺🇸Alaska, USOperational

Constructed in 1905, Eldred Rock Light stands as an octagonal wooden tower reaching 27.7 meters in height. Its lantern and gallery are painted black, contrasting with the white structure. The light emits a white flash with a geographic range of 8 nautical miles. This lighthouse was the final of twelve manned lights established in Alaska during the early 1900s. It is situated near Lynn Canal.

Why it matters: Eldred Rock Lighthouse is listed on the National Register of Historic Places and marks the conclusion of a significant lighthouse construction period in Alaska.

Background
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. It was also the last of 12 manned lighthouses that were started in Alaska. It is listed on the National Register of Historic Places as Eldred Rock Lighthouse.
Characteristic Signature
Fl W 6s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
6s
Raw Code
Fl
Focal Height
28m
Geographic Range
8NM
Year Built
1905
Heritage Status
National Register of Historic Places listed place
Admiralty No.
G6543
USCG No.
6-23880
ARLHS No.
ALK-006
Wikidata
Q2753859
OpenStreetMap
View on OSM →
Tower Height
27.7m
Tower Shape
octagonal
Tower Color
white, lantern and gallery black
Material
wood
City
Alaska
Country
🇺🇸US
Latitude
58.9712°
Longitude
-135.2221°
Flag
Type
Name
Dist.
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How do mariners identify Eldred Rock Lighthouse at night?+
Eldred Rock 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 Eldred Rock Lighthouse guide vessels into?+
Eldred Rock Lighthouse assists vessels approaching 5 nearby ports. The closest is Haines at 18.4 NM to the NNW. Other ports served include Skagway (28.8 NM N), Excursion Inlet (34.1 NM SSW), Gustavus (38.4 NM SSW), Pleasant Island (39.4 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Eldred Rock Lighthouse still active and maintained?+
Yes, Eldred Rock 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 Eldred Rock Lighthouse?+
You can track vessels near Eldred Rock 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.