flows SE to the Pacific Ocean, on NE coast of Umnak I., 6 mi. SE of Okmak Caldera, Aleutian Islands.
Name published by Byers (1959, pl. 41), U.S. Geological Survey (USGS).
Camp Bay, Deer Bay, North Pustoi Bay, Otter Bight, South Pustoi Bay,
Capes:Antler Point, Cape Idak, Deer Point, Kettle Cape, Otter Point, Pustoi Point, Reindeer Point, Tiderip Point,
Channels:Craters:Hills:Islands:Black Rock, Emerald Island, Polivnoi Rock, Pustoi Island, Ship Rock,
Mountains:Mount Idak, Mount Okmok, Tulik Volcano,
Ridges:East Arcuate Ridge, Magazine Ridge, North Arcuate Ridge,
Rivers:Streams:Antler Creek, Camp Creek, Idak Creek, Kadi Creek, Kansas Creek, Marsh Creek, Missouri Creek, Nest Creek, Reindeer Creek, Spring Creek, Teal Creek, Texas Creek, Thirty-three Creek, Unga Creek, Utah Creek,
Valleys: