3 mi. SE of Great Sitkin I., between Adak and Atka Islands., one of Andreanof Islands., Aleutian Islands. 6.7 miles long.
Aleut name recorded as "Egilka" by Commodore Joseph Billings, Imperial Russian Navy (IRN), in 1790 and published by M. Sauer in 1802.
Igitxim Chmaa, Igitxim Kangayuu, Igitxim Nguu, Tagalam Agala,
Bars:Bays:Aankuuga, Alugasux, Azamis Cove, Chalux, Chigulam Udaa, Chuguugix Iilamiizax, Chuhngudugis, Daa Agidgix, Hanisxa, Igitkin Bight, Iiqiisix, Naagix Adimtusix, Nahmagix, Ngam Ulaa, Nguugix Iilamiizax, Qagaagix Chalux, Qahnichxucha, Qigaagix Adimtusix, Qigaangax, Round Cove, Saamlus, Shelter Cove, Tagalam Udaa, Ugiilagaadax, Ulgusix, Umak Bight, Uuhmugzux, Yoke Bay,
Beaches:Capes:Aalux, Agony Point, Bugle Point, Cape Agumsadak, Cape Azamis, Cape Chakik, Cape Kagalus, Cape Ruin, Cape Umak, Cathedral Point, Elbow Point, Igitkin Point, Iqalax, Kingfisher Point, Knaxchiing, Moss Point, Narrows Point, Passage Point, Reach Point, Rip Point, Sulphur Point, Tanager Point, Uchixsax, Zaliva Point,
Channels:Asuksak Pass, Chugul Pass, Great Sitkin Pass, Igitkin Pass, Tagalak Pass, Umak Pass, Yoke Pass,
Hills:Islands:Anagaksik Island, Asuksak Island, Box Island, Chugul Island, Igitkin Island, Kanu Island, Tagadak Island, Tagalak Island, Tanaklak Island, Teapot Rock, Ulak Island, Umak Island,
Mountains:Streams:Bugle Creek, Fox Creek, Little Fox Creek, Middle Yoke Creek, Sitkin Creek, South Yoke Creek,
Waterfalls: