off Kobakof Bay, on S coast of Atka I., Aleutian Islands.
Aleut name published by Captain Tebenkov (1852, map 27), Imperial Russian Navy (IRN), as "O(strov) Sagchudak," or "Sagchudak Island."
Atxam-yaagan-chixsxa, Haanugim-yangis, Salt Reef, Starichkof Reef,
Bays:Aaguliigagix, Alax Hatax, Alax Hatax, Anuqichxalux, Asagam-qakuudga, Banner Bay, Beaver Bay, Chaxchix, Chugimgagix, Chuguuxsax, Deep Bay, Egg Bay, Explorer Bay, Haanugim-kangchii, Haanugix, Hachuugix Hiliixsax, Hachuugix Umyagix, Hmachilam-qakuudguu, Ingyuqax, Ixsagim Udaa, Kahngadgagix, Kobakof Bay, Martin Harbor, Naagix Hmachilax, Nan-changanax, Nusax, Qaluugix Hiliixsax, Qaluugix Umyagix, Qatxayagum-sitacha, Qatxayagux, Qigagalux, Qulxudam Udaa, Quusax, Quusax Galga, Qyasxum-qala, Sadan-tanam Tatuu, Saguugaadam Adangan Udaa, Sarana Cove, Smutim Qala, Tagugasix, Tumgas Udaa, Utxis Udaa, Uzamkux, Vasilief Bay,
Beaches:Capes:Aaguliigagim-yaaga, Alaginiigux, Amunaxagim Yaaga, Angix, Anuqim-yaaga, Atxam-yaaga, Banner Point, Changidigas, Chaqisxa, Chaxchim-yaaga, Chixtis Yaaga, Chuguuxsam-hidaluu, Egg Point, Haanugim-yaaga, Hiliixsam-yaaga, Ikazagan Yaaga, Qanguxchilax, Saguugaadam-yaaga, Tumgas Yaaga, Unglus, Utxis Yaaga, Utxis Yaaga, Uzamkum-yaaga, Yaxax,
Channels:Cliffs:Islands:Alax Hatam-tanasuu, Atka Island, Chagnagix, Egg Island, Gixsxagix, Ikazagan Tanasuu, Kanuuxsux, Qagudas, Qatxayagum-tanasuu, Qudga Hanixsxax, Qungidgis, Qyasxum Qalan Tanasuu, Sadatanak Island, Sagchudak Island, Saguugaadax, Saguugaadax, Salt Island, Simtusix, Tanax Angunax, Taqusas, Uzamkum-tanasuu, Vasilief Islands,
Lakes: