Adak 70 mi (113 km) SE Atka 173 mi (279 km) NE Shemya Station 183 mi (294 km) NW Attu Station 222 mi (357 km) NW Anchorage 1238 mi (1993 km) NE
From Wood and Kienle (1990) : "Davidof, Khvostof, and nearby small islands Pyramid and Lopy rise 100 m above a submarine platform as the remnants of a collapsed caldera. This 'Aleutian Krakatoa' is thought to have formed during the late Tertiary, but the volcano is essentially unstudied. The islands are covered by vegetation; however lava flows can be recognized on aerial photographs. Lavas and pyroclastic layers form the islands, and rocks on the northern part of Davidof and Lopy Island are intensely hydrothermally altered."