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Cape Decision Lighthouse

Fl W 5s🇺🇸Alaska, USOperational

Location & Light Range

About Cape Decision Lighthouse

Also known as: Cape Decision Coast Guard Heliport

This lighthouse stands 23 meters tall with its focal plane at 29 meters. Its light emits a white signal. The structure is situated on Kuiu Island, near Sumner Strait in Southeast Alaska. It became operational to guide mariners.

Why it matters: Cape Decision Lighthouse is listed on the National Register of Historic Places.

Background
Cape Decision is a lighthouse located on Kuiu Island adjacent to Sumner Strait in Southeast Alaska.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Focal Height
29m

Construction & History

Heritage Status
National Register of Historic Places listed place

References & Identifiers

Wikipedia
Read on Wikipedia →
Wikidata
Q2160324 →
OpenStreetMap
View on OSM →

Tower & Structure

Tower Height
23m

Location

City
Alaska
Country
🇺🇸US
Latitude
56.0007°
Longitude
-134.1374°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Cape Decision Lighthouse at night?+
Cape Decision displays the characteristic Fl W 5s — 1 white flash every 5 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 Cape Decision Lighthouse guide vessels into?+
Cape Decision Lighthouse assists vessels approaching 4 nearby ports. The closest is Pittston at 22.6 NM to the NW. Other ports served include Steamboat Bay (32.8 NM SSE), KLAWOCK (44.3 NM SE), CRAIG (46 NM SE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Cape Decision Lighthouse still active and maintained?+
Yes, Cape Decision 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 Cape Decision Lighthouse?+
You can track vessels near Cape Decision 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.