Mary Island Light

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Mary Island Light
Mary Island Light in 1937
Mary Island Light is located in Alaska
Mary Island Light
Mary Island Light
Location Mary Island, Revillagigedo Channel, Alaska
Coordinates 55°5′56″N 131°10′54″W / 55.09889°N 131.18167°W / 55.09889; -131.18167Coordinates: 55°5′56″N 131°10′54″W / 55.09889°N 131.18167°W / 55.09889; -131.18167
Year first lit 1903
Automated 1969
Foundation Concrete
Construction Reinforced concrete
Tower shape White art deco square tower
Height 61 ft (76 feet above sea level)
Original lens Fourth order Fresnel lens, 1903
Range 6 nm
Characteristic Flashing white 6s, Obscured from 341° to 150°.
Admiralty number G6006
ARLHS number ALK-009
USCG number


Mary Island Light Station
Nearest city Ketchikan, Alaska
Area 9.8 acres (4.0 ha)
Built 1937
Architect US Lighthouse Service; Chase, D.A., et al.
Architectural style Moderne
Governing body Federal
MPS Light Stations of the United States MPS
NRHP Reference # 05000645[1]
Added to NRHP July 8, 2005

The Mary Island Light Station is a lighthouse located on the northeastern part of Mary Island in southeastern Alaska, USA.


Mary Island Light Station was opened in 1903, and was one of a series of staffed lights established by the U.S. Government to guide ships through the treacherous waters of Southeast Alaska's Inside Passage. In 1937, a concrete lighthouse and fog signal building replaced the original wood tower. Situated behind the light were two lightkeeper houses which housed the Coast Guard Lightkeepers. One of the houses burned down in 1965(?); the other house was moved off the island to nearby Ketchikan, Alaska.

Original 1903 Lighthouse – USCG archive photo

In 1969 the station was automated and the radio beacon was removed. No other buildings and structures at the station stand today, other than an outhouse.

Actually, the northern of the two keepers dwellings was moved in 1964 while I was there. The southern dwelling was used by the 4 man crew until the station was decommissioned in 1969, and in 1970 the dwelling was moved.

It was listed on the National Register of Historic Places as Mary Island Light Station in 2005.[1][2]

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