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

Fort Popham Lighthouse

Fl G 4s🇺🇸Southern Maine, USOperational

Location & Light Range

About Fort Popham Lighthouse

This light is situated in Southern Maine with a focal height of 8 meters. It emits a green light. The operational status indicates it is currently active.

Light & Optic

Characteristic Signature
Fl G 4s
Flash Type
Flashing
Light Color
Green
Flash Count
1 flash
Interval
4s
Focal Height
8m

Nearby Vessels

Flag
Type
Name
Dist.

Location

City
Southern Maine
Country
🇺🇸US
Latitude
43.7550°
Longitude
-69.7834°
Live tracking · 50,000+ mariners

Find Fort Popham 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 Fort Popham Lighthouse at night?+
Fort Popham displays the characteristic Fl G 4s — 1 green 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Fort Popham Lighthouse guide vessels into?+
Fort Popham Lighthouse assists vessels approaching 5 nearby ports. The closest is GREAT ISLAND BOAT at 7.3 NM to the NW. Other ports served include BOOTHBAY (8.2 NM NE), Boothbay Harbor (8.6 NM NE), Bath (8.8 NM N), COOKS LOBSTER HOUSE (8.9 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Fort Popham Lighthouse still active and maintained?+
Yes, Fort Popham 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 Fort Popham Lighthouse?+
You can track vessels near Fort Popham 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.