Fox Islands (Alaska) in the context of "Aleut people"

Mount Cleveland (also known as Cleveland Volcano) is a nearly symmetrical stratovolcano on the western end of Chuginadak Island, which is part of the Islands of Four Mountains just west of Umnak Island in the Fox Islands of the Aleutian Islands of Alaska. Mount Cleveland is 5,675 ft (1,730 m) high, and one of the most active of the 75 or more volcanoes in the larger Aleutian Arc. Aleutian natives named the island after their fire goddess, Chuginadak, who they believed inhabited the volcano. In 1894 a team from the United States Coast and Geodetic Survey visited the island and gave Mount Cleveland its current name, after then-president Grover Cleveland.

One of the most active volcanoes in the Aleutian Arc, Cleveland has erupted at least 22 times in the last 230 years. A VEI 3 eruption in 1944 produced the arc's only known volcanic fatality. Most recently Mount Cleveland has erupted three times in 2009, twice in 2010, once in 2011 and in 2016 and 2017. The volcano's remoteness limits opportunities for its study, and the Alaska Volcano Observatory relies heavily on satellites for monitoring. The volcano is primarily hazardous to aircraft; many of the flights over the north Pacific approach the vicinity of the volcano, and volcanic ash released from eruptions can damage sensitive electronic equipment and sensors.

The Islands of Four Mountains (Russian: Четырёхсопочные острова) 52°52′33″N 169°47′42″W / 52.87583°N 169.79500°W / 52.87583; -169.79500 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 km) 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.

Umnak (Aleut: Unmax, Umnax; Russian: Умнак) is one of the Fox Islands of the Aleutian Islands. With 686.01 square miles (1,776.76 km) of land area, it is the third largest island in the Aleutian archipelago and the 19th largest island in the United States. The island is home to a large volcanic caldera on Mount Okmok and the only field of geysers in Alaska. It is separated from Unalaska Island by Umnak Pass. In 2000, Umnak was permanently inhabited by only 39 people and by 2010, around 18, placing the settlement of Nikolski in difficulty and its school was closed.

Unalaska (Aleut: Nawan-Alaxsxa; Russian: Уналашка) is a volcanic island in the Fox Islands group of the Aleutian Islands in the US state of Alaska located at 53°38′N 167°00′W / 53.633°N 167.000°W / 53.633; -167.000. The island has a land area of 1,051 square miles (2,720 km). It measures 79.4 mi (127.8 km) long and 34.7 mi (55.8 km) wide. The city of Unalaska, Alaska, covers part of the island and all of neighboring Amaknak Island where the Port of Dutch Harbor is located. The population of the island excluding Amaknak as of the 2000 census was 1,759 residents.

Unalaska is the second-largest island in the Fox Islands group and the Aleutian Islands. The coastline of Unalaska is markedly different in appearance than other major Aleutian Islands, with numerous inlets and peninsulas. The irregular coastline is broken by three long deep bays, Beaver Inlet, Unalaska Bay, and Makushin Bay, as well as by numerous smaller bays and coves. Unalaska's terrain is rugged and covered with mountains, and during the greater part of the year, the higher elevations are covered with snow. The highest point on Unalaska is the active Makushin Volcano.