Adak Army Base and Adak Naval Operating Station
- Also Known As: Adak Naval Station (Naval Air Station Adak)
- Vicinity: Roughly bounded by Cape Adagdak, Scabbard Bay, and Shagak Bay
Established in 1942, these World War II installations were the westernmost in the nation for a short while, and allowed American forces to mount a successful offensive against the Japanese-held Aleutian islands of Kiska and Attu. Until very recently, Adak, located about 1,400 air miles southwest of Anchorage, remained an active naval station. - NRHP 27 February 1987