at Unga, on Delarof Bay, on SE coast of Unga I., in Shumagin Is., Aleutian Range
Local name published by U.S. Coast and Geodetic Survey (USC&GS) in 1916. So called because a flagpole was located on the hill. Copper River and Northwestern Railway was the Flagstaff Mines'. The name is suggested by the Flagstaff Mine."
Arch Rock, Cross Island, Egg Island, Egg Island, Elephant Rock, Halfway Rock, High Island, Kelly Rock, Little Egg Island, Popof Island, Range Island, Range Islet, Round Island, Sealion Rocks, Unga Island,