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Archipelago

    Bering SeaUnited States

    52°53′N 169°48′W

    Islands of Four Mountains

    Part of Aleutian Islands

    The Islands of Four Mountains (Russian: Четырёхсопочные острова) is an island grouping of the Aleutian Islands in Alaska, United States. The chain includes, from west to east, Amukta, Chagulak, Yunaska, Herbert, Carlisle, Chuginadak, Uliaga, and Kagamil islands.

    Herbert Island, Aleutian Islands
    Herbert Island, Aleutian Islands

    NASA / Public domain

    Chart

    5 landforms

    Overview

    The Islands of Four Mountains (Russian: Четырёхсопочные острова) is an island grouping of the Aleutian Islands in Alaska, United States. The chain includes, from west to east, Amukta, Chagulak, Yunaska, Herbert, Carlisle, Chuginadak, Uliaga, and Kagamil islands. This island chain is located between Amukta Pass and the Andreanof Islands to the west, and Samalga Pass and the Fox Islands to the east. These islands have a total land area of 210.656 sq mi (545.596 km2) and have no permanent population. The two largest islands are Yunaska and Chuginadak. Chuginadak is mainly made up of the active volcano Mount Cleveland. The name is translated from Russian Четырехсопочные Острова (Ostrova Chetyre Soposhnye) meaning "Islands of Four Volcanoes" (Sarichev, 1826, map 3). The early Russian explorers named the islands by this term because of four prominent volcanoes, each located on a separate island. The Aleut name Unigun (Uniiĝun in the modern Aleut orthography) was reported in 1940 by Father Veniaminov. There appears to be confusion regarding the names of these islands, possibly because only four of the five are on most early maps and charts. The present names were gathered in 1894 by a field party from USS Concord and published in 1895 by the U.S. Navy Hydrography Office (Chart 8). This is the first island in the Aleutian time zone, 1 hour behind Alaska with daylight saving time as of 2010.

    From Wikipedia, CC BY-SA 4.0

    Census, cataloged

    • Major islands3
    • Minor islands0
    • Islets1
    • Rocks & skerries1

    Major islands

    3
    • Chuginadak Island

      Chuginadak Island

      Area
      167 km²
      High point
      1,730 m

      Chuginadak Island (Aleut: Tanax̂ Angunax̂; Russian: Чугинадак) is the largest island in the Islands of Four Mountains subgroup of the Aleutian archipelago. Chuginadak is an Aleutian name published by Captain Tebenkov in an 1852 map. " The Western half of the island is called Chuginadax in Aleut, meaning 'simmering'.

    • Kagamil Island

      Kagamil Island

      Area
      42.2 km²
      High point
      709 m

      9 km) south of Uliaga Island. 0 km) in width. The southern half of the island is dominated by the Kagamil Volcano, which has two summits: one is 2,930 feet (890 m) above sea level, while the other is lower at 2,260 feet (690 m).

    • Carlisle Island

      Carlisle Island

      Area
      41 km²
      High point
      1,620 m

      Mount Carlisle is a stratovolcano in Alaska which forms part of the 5 mile (8 km) wide Carlisle Island, one of the Islands of Four Mountains which, in turn, form part of the central Aleutian Islands.

    Islets

    1
    • Unnamed island7 m · 0.03 km²

    Rocks & skerries

    1

    Also in the area

    8

    Inside the group's outline but not confirmed as members by any source.

    • Yunaska Island950 m · 172 km²
    • Herbert Island1,300 m · 54 km²
    • Amukta1,066 m · 49.6 km²
    • Uliaga Island859 m · 8.9 km²
    • Chagulak Island1,142 m · 8.3 km²
    • Unnamed island8 m · 0.01 km²
    • Unnamed island1 m · 0.2 ha
    • Unnamed island<0.1 ha

    Figures

    Comparative heights

    Sea level500 m1,000 m1,500 m2,000 m1,730 mChuginadak1,620 mCarlisle1,300 mHerbert1,142 mChagulak1,066 mAmukta950 mYunaska859 mUliaga709 mKagamil16 mCorwin Rock
    High points by island, metres above sea level.

    Islands by area

    0.00010.0010.010.11101001,000Yunaska: 172 km²YunaskaChuginadak: 167 km²ChuginadakHerbert: 54 km²HerbertAmukta: 49.6 km²AmuktaKagamil: 42.2 km²KagamilCarlisle: 41 km²CarlisleUliaga: 8.9 km²UliagaChagulak: 8.3 km²ChagulakUnnamed island: 0.03 km²Unnamed islandCorwin Rock: 0.02 km²Corwin RockUnnamed island: 0.01 km²Unnamed islandUnnamed island: 0.2 haUnnamed islandUnnamed island: <0.1 haUnnamed island
    km², log scale
    Yunaska Island172 km²
    Chuginadak Island167 km²
    Herbert Island54 km²
    Amukta49.6 km²
    Kagamil Island42.2 km²
    Carlisle Island41 km²
    Uliaga Island8.9 km²
    Chagulak Island8.3 km²
    Unnamed island0.03 km²
    Corwin Rock0.02 km²
    Unnamed island0.01 km²
    Unnamed island0.2 ha
    Unnamed island<0.1 ha

    Sources

    Facts

    • Geometry, areas and high points: OpenStreetMap contributors (ODbL), Copernicus GLO-30, via Talus.
    • Wikidata
    • Talus
    • Wikipedia

    Photographs