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

Isle Au Haut Lighthouse

Fl WR 4s🇺🇸Eastern Maine, USOperational

Location & Light Range

About Isle Au Haut Lighthouse

Constructed and first illuminated in 1907, the Isle Au Haut Lighthouse measures 12 meters in height with a focal plane of 14.5 meters. The structure exhibits a white and red light. This light serves navigators off the coast of Eastern Maine. Its construction addressed maritime needs in this region.

Why it matters: The lighthouse is recognized as a listed place on the National Register of Historic Places.

Light & Optic

Characteristic Signature
Fl WR 4s
Flash Type
Flashing
Light Color
WR
Flash Count
1 flash
Interval
4s
Focal Height
14.5m

Construction & History

Year Built
1907
Heritage Status
National Register of Historic Places listed place

References & Identifiers

Wikipedia
Read on Wikipedia →
Wikidata
Q6083839 →

Tower & Structure

Tower Height
12m

Location

City
Eastern Maine
Country
🇺🇸US
Latitude
44.0647°
Longitude
-68.6514°

Nearby Vessels

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

Find Isle Au Haut Lighthouse on the live nautical map

Plan voyages near US, 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 Isle Au Haut Lighthouse at night?+
Isle Au Haut displays the characteristic Fl WR 4s — 1 wr 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. The wr color may indicate a specific sector or warning zone.
Which ports and harbors does Isle Au Haut Lighthouse guide vessels into?+
Isle Au Haut Lighthouse assists vessels approaching 5 nearby ports. The closest is Matanuska at 10.1 NM to the ENE. Other ports served include NORTH HAVEN (10.2 NM WNW), Little Deer Isle (13.2 NM N), BERNARD (16.6 NM NE), Brooksville (17.1 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Isle Au Haut Lighthouse still active and maintained?+
Yes, Isle Au Haut 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 Isle Au Haut Lighthouse?+
You can track vessels near Isle Au Haut 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.