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La Corne Lighthouse

Fl (3) White/Red/Green 12s🇫🇷FROperational

Location & Light Range

About La Corne Lighthouse

Constructed in 1876, this stone lighthouse is situated at the northeastern entrance to the Jaudy or Tréguier estuary. The cylindrical tower, standing 18 meters tall with a focal height of 14 meters, originally featured an upper cylindrical section and a lower conical base, which incorporated keeper's quarters. Its upper portion was damaged during World War II and subsequently repaired, resulting in its current truncated form. The lighthouse emits three flashes of white, red, or green light in a 12-second cycle, offering a geographic range of 11.6 nautical miles. Visitors can access the site, but the tower itself remains closed.

Why it matters: The lighthouse's unique directional light is indispensable for safe navigation into the Jaudy or Tréguier estuary, guiding vessels through specific channels and around hazards. Its rebuilt state also serves as a reminder of wartime damage to coastal infrastructure.

Light & Optic

Characteristic Signature
Fl (3) White/Red/Green 12s
Flash Type
Flashing
Light Color
White/Red/Green
Flash Count
3 flashes
Interval
12s
Raw Code
Fl(3) WGR 12s
Focal Height
14m
Geographic Range
11.6NM

Construction & History

Year Built
1876

Significant events: destroyed during World War II

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
18m
Tower Shape
cylindrical
Tower Color
white on the upper portion and red on the lower
Material
stone

Structure: round stone tower, upper half cylindrical and lower half conical, incorporating keeper's quarters, with gallery but no lantern

Location

Country
🇫🇷France
Sea Region
northeastern entrance to Jaudy or Tréguier estuary
Latitude
48.8557°
Longitude
-3.1768°

References & Identifiers

Nearest Port
Treguier(4.3 km)
Admiralty No.
A1760
NGA No.
7832
ARLHS No.
FRA-250
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Frequently Asked Questions

How do mariners identify La Corne Lighthouse at night?+
La Corne displays the characteristic Fl (3) White/Red/Green 12s — 3 white/red/green flashes every 12 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. The white/red/green color may indicate a specific sector or warning zone.
Which ports and harbors does La Corne Lighthouse guide vessels into?+
La Corne Lighthouse assists vessels approaching 5 nearby ports. The closest is Plougrescant at 2.3 NM to the W. Other ports served include Lanmodez (3.1 NM E), Tréguier (4.5 NM SSW), Lézardrieux (5 NM SE), Paimpol (6.9 NM SE). Mariners should consult the relevant chart for full approach and pilotage information.
Is La Corne Lighthouse still active and maintained?+
Yes, La Corne 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.
What shipping routes pass near La Corne Lighthouse?+
La Corne Lighthouse is located within the English Channel / North Sea corridor — one of the world's busiest maritime corridors connecting the Atlantic to Northern European ports. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near La Corne Lighthouse?+
You can track vessels near La Corne 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.