Guard Island Light, Lighthouse near Tongass Narrows entrance, Ketchikan Gateway Borough, US
The Guard Island Light features a rectangular tower made of reinforced concrete, painted white with a black lantern atop an oil house structure.
Established in 1904 during the Klondike Gold Rush, this lighthouse guided ships through the Inside Passage, receiving a concrete tower upgrade in 1924.
The lighthouse represents the maritime navigation heritage of Southeast Alaska, marking safe passages for vessels through the Clarence Strait waters.
The automated lighthouse projects a white flash every 10 seconds with a range of 17 nautical miles, providing essential navigation guidance for maritime traffic.
The concrete tower rises 30 feet above ground, positioning its light source at 74 feet above sea level for maximum visibility in challenging waters.
Location: Ketchikan Gateway Borough
Inception: 1904
GPS coordinates: 55.44596,-131.88119
Latest update: March 4, 2025 12:21
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