on SE coast of Ugamak I., Krenitzin Islands., Aleutian Islands.
Named in 1901 for Ugamak Island by J. J. Gilbert, U.S. Coast and Geodetic Survey (USC&GS).
Tigalda Bay, Ugamak Bay, Welcome Bay,
Capes:Agaagilag-ukux, Angaakix, Seal Cape, Unimguukux,
Channels:Hills:Islands:Aiktak Island, Botinski Island, Caribou Islands, Kaligagan Island, Pinnacle Rock, Round Island, Ugamak Island,
Rivers:Streams: