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

Sentinel Island Lighthouse

Fl W 10s🇺🇸Alaska, USOperational

Location & Light Range

About Sentinel Island Lighthouse

Constructed in 1902, the Sentinel Island Light stands adjacent to Lynn Canal in Alaska. The tower is painted white and has a focal height of 26 meters. It emits a white light. The lighthouse has been operational since its construction in 1902.

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

Background
The Sentinel Island Light is a lighthouse in Alaska adjacent to Lynn Canal.

Light & Optic

Characteristic Signature
Fl W 10s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
10s
Focal Height
26m

Construction & History

Year Built
1902
Heritage Status
National Register of Historic Places listed place

References & Identifiers

Wikipedia
Read on Wikipedia →
Wikidata
Q2856088 →
OpenStreetMap
View on OSM →

Tower & Structure

Tower Color
white

Location

City
Alaska
Country
🇺🇸US
Latitude
58.5462°
Longitude
-134.9229°

Nearby Vessels

Flag
Type
Name
Dist.
Live tracking · 50,000+ mariners

Find Sentinel 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 Sentinel Island Lighthouse at night?+
Sentinel 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 Sentinel Island Lighthouse guide vessels into?+
Sentinel Island Lighthouse assists vessels approaching 5 nearby ports. The closest is Auke Bay at 12.6 NM to the SE. Other ports served include Excursion Inlet (18.3 NM WSW), Juneau (22.1 NM SE), Pleasant Island (25.2 NM WSW), Hawk Inlet (25.8 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sentinel Island Lighthouse still active and maintained?+
Yes, Sentinel 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 Sentinel Island Lighthouse?+
You can track vessels near Sentinel 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.