51 ° 57' 5" N,
179 ° 36' 2.999" E
Aleutians West (CA)
island, 13 mi. across, northeasternmost of Rat Islands., Aleutian Islands.
HistoryDescriptive name derived from the Russian words "sem" meaning "seven," and "sopochka," meaning "extinct volcano"--seven volcanoes or seven peaks. Published by Lieutenant G. A. Sarichev (1826, map 3), Imperial Russian Navy (IRN), as "O(strov) Semisoposhnoy". It was published as "O(strov) Semisopochnyy" or "Semisopchnyy Island" by Captain Tebenkov (1852, map 29), Imperial Russian Navy (IRN). The island may have been named in 1790 by Lieutenant Sarichev, Imperial Russian Navy (IRN).
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: