Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Jackstraw Shoal Lighthouse

Fl Red 4s🇨🇦Leeds and the Thousand Islands, CAOperational

Location & Light Range

About Jackstraw Shoal Lighthouse

A cylindrical metal tower, 7.5 meters tall, stands on Jackstraw Shoal, Canada. Painted white with a red band at the top, it exhibits a red flashing light with a 4-second cycle. The light's focal plane is 9 meters above the water, providing a geographic range of 10 nautical miles. This structure serves to mark the submerged hazard of Jackstraw Shoal. While the site is open to visitors, the tower itself is closed to the public. The nearest port is Clayton, approximately 5 kilometers away.

Why it matters: This lighthouse marks a submerged hazard, preventing groundings and ensuring the safe passage of vessels in Canadian waters.

Light & Optic

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

Location

City
Leeds and the Thousand Islands
Country
🇨🇦Canada
Region
Ontario
Sea Region
Jackstraw Shoal, Canada, marking a submerged hazard to navigation
Latitude
44.3249°
Longitude
-76.1195°

References & Identifiers

Nearest Port
Clayton(5.0 km)
Admiralty No.
H2848
ARLHS No.
CAN-1069

Tower & Structure

Tower Height
7.5m
Tower Shape
cylindrical
Tower Color
white with a red band at the top

Structure: round metal tower painted white with a red band at the top

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
Live tracking · 50,000+ mariners

Find Jackstraw Shoal Lighthouse on the live nautical map

Plan voyages near Canada, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Jackstraw Shoal Lighthouse at night?+
Jackstraw Shoal displays the characteristic Fl Red 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Jackstraw Shoal Lighthouse guide vessels into?+
Jackstraw Shoal Lighthouse assists vessels approaching 5 nearby ports. The closest is GORDON MARINE at 1.8 NM to the W. Other ports served include CLAYTON (5.5 NM SSE), Clayton (6.3 NM SSE), ALEXANDRIA BAY (8.7 NM E), Rockport (8.8 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Jackstraw Shoal Lighthouse still active and maintained?+
Yes, Jackstraw Shoal 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 Jackstraw Shoal Lighthouse?+
You can track vessels near Jackstraw Shoal 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.