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Keweenaw Waterway Lighthouse

Occ W 4s🇺🇸Michigan's Western Upper Peninsula, USOperational

Location & Light Range

About Keweenaw Waterway Lighthouse

This white lighthouse was constructed in 1920. The tower measures 21 meters in height, with the light positioned at the same elevation. It displays a flashing white light visible for 9 nautical miles. The structure stands within Michigan's Western Upper Peninsula.

Why it matters: This lighthouse has a heritage status of 2.

Light & Optic

Characteristic Signature
Occ W 4s
Flash Type
Occ
Light Color
White
Flash Count
1 flash
Interval
4s
Raw Code
Fl
Focal Height
21m
Geographic Range
9NM

Construction & History

Year Built
1920
Heritage Status
2

References & Identifiers

Admiralty No.
LLNR 14765
OpenStreetMap
View on OSM →

Tower & Structure

Tower Height
21m
Tower Color
white

Location

City
Michigan's Western Upper Peninsula
Country
🇺🇸US
Latitude
46.9687°
Longitude
-88.4312°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Keweenaw Waterway Lighthouse at night?+
Keweenaw Waterway displays the characteristic Occ W 4s — 1 white flash every 4 seconds. 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.
Which ports and harbors does Keweenaw Waterway Lighthouse guide vessels into?+
Keweenaw Waterway Lighthouse assists vessels approaching 5 nearby ports. The closest is HOUGHTON at 10.9 NM to the NNW. Other ports served include Baraga (11.7 NM S), MARKHAMS (13.1 NM NW), Ontonagon (37.1 NM W), White Pine (49.1 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Keweenaw Waterway Lighthouse still active and maintained?+
Yes, Keweenaw Waterway 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 Keweenaw Waterway Lighthouse?+
You can track vessels near Keweenaw Waterway 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.