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Longue Pointe Traverse Upstream Range Front Lighthouse

Iso Green 2s🇨🇦Longueuil, CAOperational

Location & Light Range

About Longue Pointe Traverse Upstream Range Front Lighthouse

This cylindrical steel tower stands 9 meters tall and is painted white with an orange daymark featuring a black vertical stripe. It is situated on the riverbank in Longueuil, Quebec, within Parc de la Pointe du Marigot. The light emits an isophase green flash every 2 seconds from a focal height of 14 meters, with a geographic range of 11.6 nautical miles. The structure was established as part of new upstream range lights between 1977 and 1994, replacing earlier lights that guided downstream traffic. The site is open to the public, though the tower itself is closed.

Why it matters: This range front light guides vessels upstream through the Longue Pointe Traverse, contributing to safe passage on the St. Lawrence River.

Light & Optic

Characteristic Signature
Iso Green 2s
Flash Type
Isophase
Light Color
Green
Interval
2s
Raw Code
Iso G 2s
Focal Height
14m
Geographic Range
11.6NM

Construction & History

Significant events: Original Longue Pointe Traverse Range Lights discontinued and new upstream range lights established between 1977 and 1994

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
9m
Tower Shape
cylindrical
Tower Color
white and carrying a daymark colored orange with a black vertical stripe
Material
steel

Structure: round steel tower with lantern and gallery, painted white and carrying a daymark colored orange with a black vertical stripe

Location

City
Longueuil
Country
🇨🇦Canada
Region
Quebec
Sea Region
St. Lawrence River, at the riverbank in Longueuil, Quebec, within the Parc de la Pointe du Marigot, opposite the southern tip of Île Verte. It guides vessels through the Longue Pointe Traverse.
Latitude
45.5618°
Longitude
-73.4948°

References & Identifiers

Nearest Port
Montreal(2.3 km)
ARLHS No.
CAN-1120
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Frequently Asked Questions

How do mariners identify Longue Pointe Traverse Upstream Range Front Lighthouse at night?+
Longue Pointe Traverse Upstream Range Front displays the characteristic Iso Green 2s. 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 Longue Pointe Traverse Upstream Range Front Lighthouse guide vessels into?+
Longue Pointe Traverse Upstream Range Front Lighthouse assists vessels approaching 5 nearby ports. The closest is Montreal at 1 NM to the WSW. Other ports served include Lachine/Montreal (3.6 NM SW), Montréal-Est (4.3 NM N), Saint-Lambert (4.7 NM S), Pointe-aux-Trembles (5.3 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Longue Pointe Traverse Upstream Range Front Lighthouse still active and maintained?+
Yes, Longue Pointe Traverse Upstream Range Front 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 Longue Pointe Traverse Upstream Range Front Lighthouse?+
You can track vessels near Longue Pointe Traverse Upstream Range Front 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.