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Langnesholmen Lighthouse

Oc White/Red/Green 6s🇳🇴Alta, NOOperational

Location & Light Range

About Langnesholmen Lighthouse

This skeletal steel lighthouse stands 6 meters tall on a small island at the western entrance to the Altafjord, about 25 km north of Alta, Norway. The structure features a lantern and gallery supported by four piles. Its skeletal portion is painted black, while the lantern is white with a red roof. The focal height of the light is 42 meters above sea level. It emits a white, red, or green light on a 6-second cycle, visible for 17.4 nautical miles. The site is open to the public, but the tower itself is closed.

Why it matters: Langnesholmen lighthouse is critical for guiding vessels safely into the Altafjord, a significant shipping route in northern Norway. Its directional light sectors specifically direct mariners past potential hazards at the fjord's entrance.

Light & Optic

Characteristic Signature
Oc White/Red/Green 6s
Flash Type
Occulting
Light Color
White/Red/Green
Interval
6s
Raw Code
Oc WGR 6s
Focal Height
42m
Geographic Range
17.4NM

Location

City
Alta
Country
🇳🇴Norway
Region
Finnmark
Sea Region
An island on the west side of the entrance to the Altafjord, approximately 25 km north of Alta, Norway.
Latitude
70.1373°
Longitude
23.0127°

References & Identifiers

Nearest Port
Stjernoya(10.9 km)
Admiralty No.
L3916
NGA No.
14000

Tower & Structure

Tower Height
6m
Tower Shape
skeletal
Tower Color
black
Material
steel

Structure: A 6m skeletal structure with a lantern and gallery supported by four piles. The lantern is white with a red roof, and the skeletal portion is black.

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Langnesholmen Lighthouse at night?+
Langnesholmen displays the characteristic Oc White/Red/Green 6s. 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. The white/red/green color may indicate a specific sector or warning zone.
Which ports and harbors does Langnesholmen Lighthouse guide vessels into?+
Langnesholmen Lighthouse assists vessels approaching 5 nearby ports. The closest is Stjernøya at 11.1 NM to the NW. Other ports served include Alta (11.4 NM SSE), Øksfjord (14.9 NM WNW), Burfjord (23.2 NM WSW), Kårhamn (24.9 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Langnesholmen Lighthouse still active and maintained?+
Yes, Langnesholmen 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 Langnesholmen Lighthouse?+
You can track vessels near Langnesholmen 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.