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Cedar Island Lighthouse

Fl G 4s🇺🇸Downstate New York, USInactive

Construction of the Cedar Island Lighthouse was completed in 1839, with its light first activated that same year. The structure stands 12 meters above sea level, casting a green light. It is situated in Cedar Point County Park in East Hampton, New York, overlooking Gardiners Bay. The lighthouse is no longer operational.

Why it matters: This lighthouse is listed on the National Register of Historic Places.

Background
Cedar Island Light is a lighthouse in Cedar Point County Park in East Hampton, New York. It overlooks Gardiners Bay.
Characteristic Signature
Fl G 4s
Flash Type
Flashing
Light Color
Green
Flash Count
1 flash
Interval
4s
Focal Height
12m
City
Downstate New York
Country
🇺🇸US
Latitude
41.0407°
Longitude
-72.2610°
Flag
Type
Name
Dist.
Year Built
1839
Heritage Status
National Register of Historic Places listed place
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How do mariners identify Cedar Island Lighthouse at night?+
Cedar Island 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 Cedar Island Lighthouse guide vessels into?+
Cedar Island Lighthouse assists vessels approaching 5 nearby ports. The closest is Sag Harbor at 2.9 NM to the SW. Other ports served include Shelter Island (3.6 NM WNW), EAST HAMPTON (4.2 NM ESE), Mill Creek (4.8 NM SW), SHELTER ISLAND HEIGH (4.9 NM WNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Cedar Island Lighthouse still active and maintained?+
Cedar Island Lighthouse is currently listed as inactive. It may have been decommissioned, replaced by a different navigation aid, or temporarily taken out of service. Mariners should check the latest Notices to Mariners for current status.
What shipping routes pass near Cedar Island Lighthouse?+
Cedar Island Lighthouse is located within the US East Coast shipping lane — a major shipping corridor serving ports along the Atlantic seaboard of the United States. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Cedar Island Lighthouse?+
You can track vessels near Cedar 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.