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Guard Island Lighthouse

Fl W 10s🇺🇸Alaska, USOperational

Location & Light Range

About Guard Island Lighthouse

Guard Island Lighthouse is a maritime navigation aid located in Alaska, US. It is currently operational and active, providing guidance to vessels navigating the surrounding waters. The light sits at a focal height of 22.5 meters above mean sea level.

Light characteristic: The identifying signal of this lighthouse is Fl W 10s. This means the light produces 1 flash every 10 seconds. Mariners use this distinctive pattern to positively identify the light and distinguish it from other aids to navigation in the area. The light displays a white signal, the most common color for major coastal lights.

Position: Guard Island Lighthouse is positioned at 55.4460°N, 131.8815°W, near Alaska in US.

Geographic context: Guard Island Lighthouse is situated on the North Pacific Ocean. The location falls within the subarctic climate zone with cold winters and potential ice conditions.

Nearby lighthouses in US: Other lighthouses in the region include Abagadasset Point Range, Absecon, Admiralty Head Light, Ahukini Breakwater, Alameda County (Oakland Area) Lighthouses. View all on the Lighthouses Directory.

Nearby Ports

Ketchikan

USKTN

8.8 NMSE

Annette Island

USANN

15.3 NMSE

Metlakatla

USMTM

22.1 NMSSE

Neets Bay

USNB4

22.4 NMNNE

Thorne Bay

USKTB

24.8 NMWNW

Flash Characteristics

Characteristic Signature
Fl W 10s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
10s

Physical Specifications

Focal Height
22.5m
Light Range
Not available
Status
ACTIVE
City
Alaska
Country
🇺🇸US
Latitude
55.4460°
Longitude
-131.8815°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Guard Island Lighthouse at night?+
Guard Island displays the characteristic Fl W 10s — 1 white flash every 10 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 Guard Island Lighthouse guide vessels into?+
Guard Island Lighthouse assists vessels approaching 5 nearby ports. The closest is Ketchikan at 8.8 NM to the SE. Other ports served include Annette Island (15.3 NM SE), Metlakatla (22.1 NM SSE), Neets Bay (22.4 NM NNE), Thorne Bay (24.8 NM WNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Guard Island Lighthouse still active and maintained?+
Yes, Guard Island 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 Guard Island Lighthouse?+
You can track vessels near Guard Island 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.