near mouth of Stepovak Bay, Aleutian Range. 1.7 mile long.
Named "O(strov) Iachnoi," meaning "Egg Island," by Captain Tebenkov (1852, map 24), Imperial Russian Navy (IRN); renamed "Guillemot Island" in 1880 by W. H. Dall, US@C&GS.
Caton Shoal, Popof Reef, Unga Reef,
Bays:Balboa Bay, Chichagof Bay, Dorenoi Bay, Fox Hole, Grosvold Bay, Korovin Bay, Lumber Bay, Mud Bay, Pirate Cove, San Diego Bay, West Cove, Windbound Bay,
Capes:Cross Cape, Danger Point, East Head, East Point, Reef Point, Renshaw Point, Swedania Point, West Head, West Point,
Channels:Cliffs:Islands:Ballast Island, Guillemot Island, Henderson Island, High Island, Korovin Island, Range Island,
Mountains:Streams:Valleys:Cities: