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Cape Spencer Lighthouse

Fl W 10s🇺🇸Alaska, USOperational

Location & Light Range

About Cape Spencer Lighthouse

Cape Spencer 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 32 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: Cape Spencer Lighthouse is positioned at 58.1972°N, 136.6394°W, near Alaska in US.

Geographic context: Cape Spencer 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

Pelican

USPEC

19.4 NMSE

Gustavus

USGST

30.9 NMENE

Pleasant Island

USPI7

33.1 NMENE

HOONAH

USHNH

38.1 NME

Excursion Inlet

USEXI

39.8 NMENE

Flash Characteristics

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

Physical Specifications

Focal Height
32m
Light Range
Not available
Status
ACTIVE
City
Alaska
Country
🇺🇸US
Latitude
58.1972°
Longitude
-136.6394°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Cape Spencer Lighthouse at night?+
Cape Spencer 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 Cape Spencer Lighthouse guide vessels into?+
Cape Spencer Lighthouse assists vessels approaching 5 nearby ports. The closest is Pelican at 19.4 NM to the SE. Other ports served include Gustavus (30.9 NM ENE), Pleasant Island (33.1 NM ENE), HOONAH (38.1 NM E), Excursion Inlet (39.8 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Cape Spencer Lighthouse still active and maintained?+
Yes, Cape Spencer 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 Spencer Lighthouse?+
You can track vessels near Cape Spencer 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.