Fort Glenn, Umnak Island

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Fort Glenn was a World War II military reservation on the northeast end of Umnak Island, in the Eastern Aleutian Islands, Alaska. The military base was named in 1942 by the U.S. Army for Brigadier General E.F. Glenn, and first published in 1947 on a U.S. Geological Survey map.

Fort Glenn was built in anticipation of an attack by Japanese forces during the Aleutian Island campaign of World War II. The site consisted of Fort Glenn Army Air Base, an airfield of the U.S. Army Air Corps later renamed Cape Air Force Base, and the adjacent Otter Point Naval Air Facility. Construction of the base began in January 1942 secretly disguised as a cannery. Fort Glenn had about 10,000 personnel by the end of 1942, and the facilities eventually included hundreds of Quonset huts, storage buildings, ammunition magazines, aircraft hangars, administration offices, radio and radar facilities, and 4 aircraft runways.

Newer air bases on Adak and Amchitka Islands further west quickly supplanted Fort Glenn as a forward operating base. By the end of 1943, the base mission had become to provide support for transient personnel and aircraft and the site was deactivated in 1947. Today hundreds of building pits, the runways, and World War II artillery emplacements remain in various states of deterioration. Fort Glenn was listed on the National Register of Historic Places and declared a National Historic Landmark in 1987. Learn more here and here. Click here to download the CoastView app and explore more of Fort Glenn and Umnak Island.

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