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Île du Grand Caouis Lighthouse

Fl White 6s🇨🇦CAOperational

Location & Light Range

About Île du Grand Caouis Lighthouse

Also known as: Île du Grand Caouis (Great Cawee Island)

Located on an isolated island about 50 kilometers south of Port Cartier, Quebec, the Île du Grand Caouis lighthouse was constructed in 1955. The structure is an octagonal concrete tower, 10 meters in height, finished in white with a red lantern room. Its light produces a single white flash every 6 seconds, visible for 17.9 nautical miles from a focal plane of 45 meters. The keeper's residence was taken down after the station's automation in 1970. Reaching this site is possible only by boat.

Why it matters: This light serves as a navigation aid for ships traveling along the north bank of the St. Lawrence River, indicating the entry to areas south of Port Cartier.

Light & Optic

Characteristic Signature
Fl White 6s
Flash Type
Flashing
Light Color
White
Interval
6s
Raw Code
Fl W 6s
Focal Height
45m
Geographic Range
17.9NM

Construction & History

Year Built
1955

Significant events: keeper's house was demolished after the station was automated in 1970

References & Identifiers

Nearest Port
Port Cartier(15.2 km)
Admiralty No.
H2010
NGA No.
3280
ARLHS No.
CAN-240

Tower & Structure

Tower Height
10m
Tower Shape
octagonal
Tower Color
white
Material
concrete

Structure: octagonal concrete (?) tower, painted white; lantern is red

Location

Country
🇨🇦Canada
Region
Quebec
Sea Region
on an island off the north shore about 50 km south of Port-Cartier
Latitude
49.8185°
Longitude
-67.0097°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Île du Grand Caouis Lighthouse at night?+
Île du Grand Caouis displays the characteristic Fl White 6s. 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 color may indicate a specific sector or warning zone.
Which ports and harbors does Île du Grand Caouis Lighthouse guide vessels into?+
Île du Grand Caouis Lighthouse assists vessels approaching 5 nearby ports. The closest is Port-Cartier at 13.1 NM to the NNE. Other ports served include Pointe Noire (28.4 NM NE), La Relance (29.4 NM NE), Sept-Iles (33.3 NM NE), Cap-Chat (45.9 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Île du Grand Caouis Lighthouse still active and maintained?+
Yes, Île du Grand Caouis 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 Île du Grand Caouis Lighthouse?+
You can track vessels near Île du Grand Caouis 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.