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Lower Chatham Strait Area Lighthouse Lighthouse

Fl White 5s🇺🇸USOperational

This black tower stands in Alaska, marking a passage in Chatham Strait. The strait itself extends 150 miles, separating Chichagof and Baranof Islands from Admiralty and Kuiu Islands. This waterway offers a direct passage from the Pacific Ocean toward Lynn Canal and Haines. The lighthouse emits a white flash every five seconds. The location is open for visitors, but entry into the tower is not permitted. Pittston is the nearest port, situated 22.6 kilometers distant.

Why it matters: This lighthouse serves as a navigation aid for vessels traveling through Chatham Strait, marking the direct passage to Lynn Canal and Haines.

Characteristic Signature
Fl White 5s
Flash Type
Flashing
Light Color
White
Interval
5s
Raw Code
Fl W 5s
Country
🇺🇸United States
Region
Alaska
Sea Region
Chatham Strait is a straight passage 150 miles (240 km) long leading almost due north from the sea at Cape Decision to join the Lynn Canal. It separates Chichagof Island and Baranof Island on the west from Admiralty Island and Kuiu Island on the east. The strait provides a direct passage from the Pacific to the Lynn Canal and Haines.
Latitude
56.0016°
Longitude
-134.1357°
Nearest Port
Pittston(22.6 km)
Admiralty No.
G6286
ARLHS No.
ALK-001
Tower Color
black

Structure: The Lower Chatham Strait Area Lighthouse marks a crucial passage in Southeast Alaska, guiding mariners through the extensive Chatham Strait. This impressive strait, stretching 150 miles from Cape Decision northward to the Lynn Canal, forms a vital waterway separating Chichagof and Baranof Islands on the west from Admiralty and Kuiu Islands on the east. It offers a direct route from the vast Pacific Ocean to the bustling ports of Lynn Canal and Haines, facilitating trade and travel through this remote region. While specific details of its construction and early operational history are not provided, the lighthouse continues its essential function today, emitting a steady white flash every five seconds. The site itself is accessible to visitors, allowing them to appreciate the rugged Alaskan landscape and the strategic importance of this navigational aid, though the tower itself remains closed to public entry. Its enduring presence underscores the continuous need for reliable guidance in these often challenging, remote waters, ensuring safe passage for vessels navigating the intricate Alaskan Inside Passage.

Open to public
Site open, tower closed
Flag
Type
Name
Dist.
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How do mariners identify Lower Chatham Strait Area Lighthouse Lighthouse at night?+
Lower Chatham Strait Area Lighthouse displays the characteristic Fl White 5s. 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 Lower Chatham Strait Area Lighthouse Lighthouse guide vessels into?+
Lower Chatham Strait Area Lighthouse Lighthouse assists vessels approaching 4 nearby ports. The closest is Pittston at 22.6 NM to the NW. Other ports served include Steamboat Bay (32.8 NM SSE), KLAWOCK (44.3 NM SE), CRAIG (46 NM SE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Lower Chatham Strait Area Lighthouse Lighthouse still active and maintained?+
Yes, Lower Chatham Strait Area Lighthouse 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 Lower Chatham Strait Area Lighthouse Lighthouse?+
You can track vessels near Lower Chatham Strait Area Lighthouse 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.