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Plymouth Lighthouses Lighthouse

Fl (3) White 30s🇺🇸Plymouth, USOperational

The Plymouth Lighthouse, also known as Gurnet Light, is an octagonal pyramidal wood tower built in 1843. Standing 10 meters tall, it is painted white with a black lantern and red roof, and its focal height reaches 31 meters. The station was first lit in 1769, but the current tower replaced an earlier structure. Originally, it was one of two lights, but the north tower was demolished in 1924. To combat beach erosion, the lighthouse was relocated 43 meters north in December 1998. The light emits three white flashes every 30 seconds and has a geographic range of 15.5 nautical miles.

Why it matters: This lighthouse is the nation's oldest active wooden light tower. Its red sector warns mariners of dangerous rocks at the entrance to Plymouth Harbor.

Characteristic Signature
Fl (3) White 30s
Flash Type
Flashing
Light Color
White
Flash Count
3 flashes
Interval
30s
Raw Code
Fl(3) W 30s
Focal Height
31m
Geographic Range
15.5NM
Year Built
1843
First Lit
1769
Heritage Status
Available for transfer under National Historic Lighthouse Preservation Act (NHLPA) in 2023

Significant events: Station established 1769, North tower demolished 1924, Relocated 140 ft north in December 1998, Project Bug Light leased lighthouse in 1999, Keeper's house closed in 2022 to protect endangered piping plovers, Available for transfer under NHLPA in 2023

Nearest Port
Plymouth (USA)(3.6 km)
Admiralty No.
J0366
USCG No.
1-12545
ARLHS No.
USA-609
Tower Height
10m
Tower Shape
octagonal pyramidal
Tower Color
white
Material
wood

Structure: A 10m octagonal pyramidal wood tower with lantern and gallery, covered by cedar shingles. It is painted white, with a black lantern and red roof.

City
Plymouth
Country
🇺🇸United States
Region
Massachusetts
Sea Region
Located on a bluff at Gurnet Point, at the end of a long sand spit on the north side of Plymouth Harbor, Massachusetts. It marks the entrance to Plymouth Harbor, which serves mostly recreational vessels, and its red sector covers dangerous rocks.
Latitude
42.0037°
Longitude
-70.6005°
Flag
Type
Name
Dist.
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How do mariners identify Plymouth Lighthouses Lighthouse at night?+
Plymouth Lighthouses displays the characteristic Fl (3) White 30s — 3 white flashes every 30 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Plymouth Lighthouses Lighthouse guide vessels into?+
Plymouth Lighthouses Lighthouse assists vessels approaching 5 nearby ports. The closest is Duxbury at 3.7 NM to the NW. Other ports served include PLYMOUTH HARBOR (3.8 NM SW), PLYMOUTH (3.8 NM SW), WHITE'S FERRY (9 NM NNW), Carver (10.4 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Plymouth Lighthouses Lighthouse still active and maintained?+
Yes, Plymouth Lighthouses 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 Plymouth Lighthouses Lighthouse?+
You can track vessels near Plymouth Lighthouses 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.