Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Guard Island Lighthouse

Fl W 10s🇺🇸Alaska, USOperational

Location & Light Range

About Guard Island Lighthouse

Guard Island Lighthouse became operational in 1904. The structure stands 22.5 meters above sea level and emits a white light. It is situated in Alaska. The lighthouse's construction was completed in 1904.

Why it matters: This lighthouse is listed on the National Register of Historic Places.

Light & Optic

Characteristic Signature
Fl W 10s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
10s
Focal Height
22.5m

Location

City
Alaska
Country
🇺🇸US
Latitude
55.4460°
Longitude
-131.8815°

Nearby Vessels

Flag
Type
Name
Dist.

Construction & History

Year Built
1904
Heritage Status
National Register of Historic Places listed place

References & Identifiers

Wikipedia
Read on Wikipedia →
Wikidata
Q3274484 →
OpenStreetMap
View on OSM →
Live tracking · 50,000+ mariners

Find Guard Island Lighthouse on the live nautical map

Plan voyages near US, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

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.