Quick Facts
On Semisopochnoi Island, Rat Islands., Aleutian Islands.
HistorySo named by 1935 U.S. Navy Survey Expedition "because the three connected summits comprising the volcano are analogous to the three-headed dog of Greek mythology, the guardian of the entrance to the underworld."
East-northeast Indent, East-southeast Bight, North-northeast Bight, North-northwest Bight, South-southeast Bay, South-southwest Indent, Southwest Indent, West-northwest Bight, West-Southwest Bight,
Capes:East-southeast Head, East-southeast Point, North-northwest Head, Northeast Point, Petrel Point, Pochnoi Point, South Point, South Tuman Point, South-southeast Point, South-southwest Point, Southeast Point, Tuman Point, West-northwest Point,
Cliffs:North Head, Southwest Knob, Sugarloaf Head, Tuman Head,
Hills:Islands:Lakes:Mountains:Anvil Peak, Mount Cerberus, Ragged Top, Sugarloaf Peak, Threequarter Cone,
Ridges:Streams: