Lighthouse · Ketchikan, Alaska

Mary Island Lighthouse

The tower was first lit in 1937 and is still an aid to navigation. Its light shows one white flash every 6 seconds, seen up to 6 nautical miles out. It is listed on the National Register of Historic Places. It stands on the northeast shore of Mary Island in Revillagigedo Channel, south of Ketchikan, reached only by boat or plane.

Open in the viewer from By boat off Mary Island →

Quick facts

TypeLighthouse
Built1937
LightFl W 6s
Position55.0990°N, 131.1826°W
From By boat off Mary Island2.4 km (1.5 mi), bearing 240° WSW
SourceUSCG Light List Vol. VI 21940; NOAA ENC; National Register 05000645

How to see it

Above water and inside the horizon from By boat off Mary Island, 2.4 km (1.5 mi) away, so on a clear day it can be seen from there, and CoastFinder puts a label on it.

On the website for now. Alaska's lighthouses are in the web viewer first, and they are coming to the CoastFinder app, which covers the North Carolina coast today. Follow @coastfinderapp to hear when Alaska arrives.

CoastFinder App

Nearby

Not for navigation. Positions and depths come from public charts and records, with their sources named above; they are for looking, not for piloting a boat.