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Duluth Harbor South Breakwater Outer Lighthouse

F G🇺🇸Minnesota, USOperational

Location & Light Range

About Duluth Harbor South Breakwater Outer Lighthouse

This lighthouse stands 13 meters tall with a focal height of 13 meters. Its green tower emits a single green flash. The structure has a geographic range of 13.9 nautical miles, providing visibility for mariners approaching the Duluth Ship Canal. It is situated on the south breakwater of the canal.

Why it matters: This light, alongside the Inner Light, assists vessels entering the canal from Lake Superior.

Background
The Duluth South Breakwater Outer Light is a lighthouse on the south breakwater of the Duluth Ship Canal in Duluth, Minnesota, United States. It forms a range with the Duluth South Breakwater Inner Light to guide ships into the canal from Lake Superior.

Light & Optic

Characteristic Signature
F G
Flash Type
Fixed
Light Color
Green
Flash Count
1 flash
Raw Code
F
Focal Height
13m
Geographic Range
13.9NM

Construction & History

Heritage Status
2

References & Identifiers

Admiralty No.
LLNR 15845
Wikipedia
Read on Wikipedia →
Wikidata
Q5313523 →
OpenStreetMap
View on OSM →

Tower & Structure

Tower Height
13m
Tower Color
green

Location

City
Minnesota
Country
🇺🇸US
Latitude
46.7800°
Longitude
-92.0877°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Duluth Harbor South Breakwater Outer Lighthouse at night?+
Duluth Harbor South Breakwater Outer displays the characteristic F G. 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 Duluth Harbor South Breakwater Outer Lighthouse guide vessels into?+
Duluth Harbor South Breakwater Outer Lighthouse assists vessels approaching 5 nearby ports. The closest is Duluth at 0.9 NM to the SSW. Other ports served include Superior (2.2 NM SW), TWO HARBORS (22.1 NM NE), Floodwood (34.6 NM WNW), Hoyt Lakes (44.2 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Duluth Harbor South Breakwater Outer Lighthouse still active and maintained?+
Yes, Duluth Harbor South Breakwater Outer 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 Duluth Harbor South Breakwater Outer Lighthouse?+
You can track vessels near Duluth Harbor South Breakwater Outer 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.