heading on NE slope of Okmok Caldera, flowing NE to N coast of Umnak I., Aleutian Islands.
Name published by U.S. Geological Survey (USGS) (Byers, 1959, pl. 41). So named because it heads on a caldera or crater.
Camp Bay, Deer Bay, North Pustoi Bay, Otter Bight, South Pustoi Bay,
Capes:Antler Point, Ashishik Point, Cape Idak, Cape Tanak, Deer Point, Fox Point, Otter Point, Pustoi Point, Reindeer Point,
Channels:Craters:Islands:Black 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, Crater Creek, Idak Creek, Kadi Creek, Kansas Creek, Marsh Creek, Nest Creek, Reindeer Creek, Spring Creek, Teal Creek, Thirty-three Creek, Unga Creek,
Valleys:Okmok Canyon, West Bogoslof Canyon,
Cities: