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Pointe du Lac Range Rear Lighthouse

F Green🇨🇦Trois-Rivières, CAOperational

Location & Light Range

About Pointe du Lac Range Rear Lighthouse

The Pointe du Lac Range Rear light is a 34-meter-high square skeletal tower. Its focal plane is 49 meters above water level. The light emits a green flash (F G) every 3 seconds. The tower is orange with a black vertical stripe and supports a daymark of the same color scheme. First lit in 1906, this marker is situated on the north bank at the downstream exit of Lac Saint-Pierre, close to Trois-Rivières. While the site is accessible, the tower is not open for climbing.

Why it matters: This range light serves as a navigation aid for eastbound ships transiting the 32-kilometer section of Lac Saint-Pierre, which widens the St. Lawrence estuary.

Light & Optic

Characteristic Signature
F Green
Flash Type
Fixed
Light Color
Green
Raw Code
F G
Focal Height
49m
Geographic Range
18.5NM

Construction & History

First Lit
1906

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
34m
Tower Shape
square
Tower Color
orange with a black vertical stripe

Structure: square skeletal tower carrying a daymark colored orange with a black vertical stripe

Location

City
Trois-Rivières
Country
🇨🇦Canada
Region
Quebec
Sea Region
Lac Saint-Pierre, a 32 km long widening of the St. Lawrence estuary, located at Pointe du Lac on the north side of the downstream exit from Lac Saint-Pierre.
Latitude
46.2798°
Longitude
-72.6708°

References & Identifiers

Nearest Port
Trois-Rivieres(6.6 km)
Admiralty No.
H2402.1
NGA No.
4808
ARLHS No.
CAN-1302
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Frequently Asked Questions

How do mariners identify Pointe du Lac Range Rear Lighthouse at night?+
Pointe du Lac Range Rear displays the characteristic F Green. 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 Pointe du Lac Range Rear Lighthouse guide vessels into?+
Pointe du Lac Range Rear Lighthouse assists vessels approaching 5 nearby ports. The closest is Trois-Rivieres (Three Rivers) at 6.5 NM to the NE. Other ports served include Yamachiche (6.7 NM W), Bécancour (10.4 NM ENE), Saint-François-du-Lac (14.5 NM SSW), Notre-Dame-du-Bon-Conseil (21.5 NM SE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Pointe du Lac Range Rear Lighthouse still active and maintained?+
Yes, Pointe du Lac Range Rear 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 Pointe du Lac Range Rear Lighthouse?+
You can track vessels near Pointe du Lac Range Rear 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.