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Gentilly Range Front Lighthouse

F Green 3s🇨🇦Bécancour, CAOperational

Location & Light Range

About Gentilly Range Front Lighthouse

The Gentilly Range Front light, built in 1920, is a 6-meter tall square tower constructed of concrete and wood. It stands on a square pyramidal concrete pier and has a focal height of 12 meters. The tower is painted white with an orange-red band and a black stripe. This upstream range light emits a single green flash. Its geographic range is 11 nautical miles. The current structure replaced an earlier light that was pushed out of position by ice floes.

Why it matters: This upstream range light provides a precise navigational line for vessels, helping them maintain their course within the channel.

Light & Optic

Characteristic Signature
F Green 3s
Flash Type
Fixed
Light Color
Green
Interval
3s
Raw Code
F G
Focal Height
12m
Geographic Range
11NM

Construction & History

Year Built
1920

Significant events: Original light replaced after being shoved out of position by ice floes

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
6m
Tower Shape
square
Tower Color
white, orange-red, black stripe
Material
concrete, wood

Structure: square wood tower with lantern mounted on a square pyramidal concrete pier

Location

City
Bécancour
Country
🇨🇦Canada
Region
Quebec
Sea Region
In the river north of Gentilly, about 20 km northeast of Trois-Rivières, visible from the south shore in the Gentilly area. This is an upstream range.
Latitude
46.4300°
Longitude
-72.2643°

References & Identifiers

Nearest Port
Becancour(4.8 km)
Admiralty No.
H2370
NGA No.
4472
ARLHS No.
CAN-952
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Frequently Asked Questions

How do mariners identify Gentilly Range Front Lighthouse at night?+
Gentilly Range Front displays the characteristic F Green 3s. 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 Gentilly Range Front Lighthouse guide vessels into?+
Gentilly Range Front Lighthouse assists vessels approaching 5 nearby ports. The closest is Bécancour at 9.1 NM to the SW. Other ports served include Trois-Rivieres (Three Rivers) (12.8 NM WSW), Saint-Tite (22.1 NM NW), Yamachiche (25.2 NM WSW), Notre-Dame-du-Bon-Conseil (26.1 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Gentilly Range Front Lighthouse still active and maintained?+
Yes, Gentilly 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 Gentilly Range Front Lighthouse?+
You can track vessels near Gentilly 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.