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Two Bush Island Lighthouse

Fl WR 5s🇺🇸Southern Maine, USOperational

Location & Light Range

About Two Bush Island Lighthouse

Established in 1897, Two Bush Island Light stands on a small island in Southern Maine. The current tower, built in the same year it was first lit, reaches a height of 13 meters, with the focal plane at 20 meters. This structure emits a white and red light. Automation of the light occurred in 1964, and the fog signal was later managed by keepers at the nearby Whitehead Light Station. In 2000, the illumination system was converted to solar power. The island itself was once characterized by two bushes, though they have long since disappeared.

Why it matters: The lighthouse is situated at the southwestern entrance to Penobscot Bay, marking a significant channel.

Background
Two Bush Island Light is a lighthouse on Two Bush Island, on the channel of the same name, the southwestern entrance to Penobscot Bay, Maine, United States. The two bushes for which the island was named have long since vanished. The lighthouse was established in 1897. The keepers were removed when the light was automated in 1964. Afterward, the Two Bush Island fog signal was operated by the keepers at nearby Whitehead Light Station, who also monitored the light. The keeper's house was destroyed in 1970 as a Green Beret demolition exercise. In the summer of 2000, the light was converted to solar power. The lighthouse itself continues to be a navigation aid, but is only visible by boat or from the air. In 1998, the lighthouse became the property of the U.S. Fish and Wildlife Service.

Light & Optic

Characteristic Signature
Fl WR 5s
Flash Type
Flashing
Light Color
WR
Flash Count
1 flash
Interval
5s
Focal Height
20m

Construction & History

Year Built
1897

References & Identifiers

Wikipedia
Read on Wikipedia →
Wikidata
Q7858869 →
OpenStreetMap
View on OSM →

Tower & Structure

Tower Height
13m

Location

City
Southern Maine
Country
🇺🇸US
Latitude
43.9644°
Longitude
-69.0737°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Two Bush Island Lighthouse at night?+
Two Bush Island displays the characteristic Fl WR 5s — 1 wr flash every 5 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 Two Bush Island Lighthouse guide vessels into?+
Two Bush Island Lighthouse assists vessels approaching 5 nearby ports. The closest is SPRUCE HEAD at 3.7 NM to the NW. Other ports served include Saint George (5.7 NM WNW), Tenants Harbour (6.2 NM W), THOMASTON (8 NM NW), Rockland (8.2 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Two Bush Island Lighthouse still active and maintained?+
Yes, Two Bush Island 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 Two Bush Island Lighthouse?+
You can track vessels near Two Bush Island 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.