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Lancaster Bar (D41) Lighthouse

Fl Green 4s🇨🇦South Glengarry, CAOperational

Location & Light Range

About Lancaster Bar (D41) Lighthouse

This lighthouse displays a green flash every 4 seconds. Its focal plane is 9 meters above the water, providing a geographic range of 10 nautical miles. The tower is painted white and features a green band at its top. The site is open to the public, but the tower itself remains closed. Its nearest port is Cornwall, located 12.8 kilometers away.

Why it matters: This lighthouse helps guide vessels safely around the Lancaster Bar, a navigational hazard in Canadian waters, preventing groundings and ensuring smooth transit.

Light & Optic

Characteristic Signature
Fl Green 4s
Flash Type
Flashing
Light Color
Green
Interval
4s
Raw Code
Fl G 4s
Focal Height
9m
Geographic Range
10NM

Location

City
South Glengarry
Country
🇨🇦Canada
Region
Ontario
Sea Region
Lancaster Bar, Canada
Latitude
45.1250°
Longitude
-74.4490°

References & Identifiers

Nearest Port
Cornwall(12.8 km)
Admiralty No.
H2552
NGA No.
6180
ARLHS No.
CAN-1071

Tower & Structure

Tower Color
white with a green band at the top

Structure: A tower painted white with a green band at the top, with a focal plane of 9m.

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 Lancaster Bar (D41) Lighthouse at night?+
Lancaster Bar (D41) displays the characteristic Fl Green 4s. 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Lancaster Bar (D41) Lighthouse guide vessels into?+
Lancaster Bar (D41) Lighthouse assists vessels approaching 5 nearby ports. The closest is REAL at 7.7 NM to the NE. Other ports served include Saint-Zotique (8.9 NM NE), Coteau du Lac (12.9 NM NE), Cornwallis Is (13.7 NM WSW), Cornwall (13.7 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Lancaster Bar (D41) Lighthouse still active and maintained?+
Yes, Lancaster Bar (D41) 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 Lancaster Bar (D41) Lighthouse?+
You can track vessels near Lancaster Bar (D41) 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.