borders Tanaga Pass, 3.5 mi. E of Skagul I., Aleutian Islands.
Aleut name published by Captain Tebenkov (1852, map 28), Imperial Russian Navy (IRN), as "K(amen) Ugidakh" or "Ugidakh Rock" and shown on an 1855 U.S. Navy Hydrographic Chart as Ugidakh Island.
Buukuchum-yaaga, Chikisas, Hiichaakam Yaaga,
Channels:Ogliuga Pass, Skagul Pass, Tanaga Pass,
Islands:Gramp Rock, Haadgux, Hmatax, Ogliuga Island, Skagul Island, Tag Islands, Uchixsax, Ugidak Island,