Islands of Four Mountains in the context of "Tana (volcano)"

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.

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. According to Knut Bergsland's Aleut Dictionary, the Aleutian word "chugida-lix" means "to fry, to make sizzle." The Western half of the island is called Chuginadax in Aleut, meaning 'simmering'.

The island is approximately 14 by 6 miles (22.5 by 9.7 km) long and the currently active Mount Cleveland stratovolcano forms the entire western half of the land mass and the eastern half of the island is the heavily eroded and less famous stratovolcano Tana. These halves of landmasses are connected with a small strip of land.

The Fox Islands (Russian: Лисьи острова) are a group of islands in the eastern Aleutian Islands of the U.S. state of Alaska. The Fox Islands are the closest to mainland North America in the Aleutian chain, and just east of Samalga Pass and the Islands of Four Mountains group.

Inhabited by the Aleut for centuries, the islands, along with the rest of the Aleutians, were first visited by Europeans in 1741, when an Imperial Russian Navy expedition led by Vitus Bering was searching for new sources of fur for Russian fur trappers.

The undissected stratovolcano of Amukta volcano makes up most of nearly circular, 7.7-km-wide Amukta Island (Amuux̂tax̂ in Aleut). It is the westernmost of the Islands of Four Mountains chain. The nearest islands to it are Yunaska and Seguam Island; it is separated from Seguam Island by Amukta Pass. The cone, about 5.8 km in basal diameter and topped by a 0.4 km wide summit crater, appears on synthetic-aperture radar imagery to be built upon a 300+ meter high, east-west trending arcuate ridge. Extensions of that ridge on the southwest and east sides of the island indicate an older caldera approximately 6 km in diameter and open to the sea on the south side. No hot springs or fumaroles have been reported from Amukta. Sekora (1973, p. 29) reports the presence of a cinder cone near the northeastern shore of the island.

Chagulak Island (also spelled Chugul, Chugula, Chegoula, or Tchougoulok; Russian: Чагулак) is a small, uninhabited volcanic island in the Islands of Four Mountains group in the Aleutian Islands of southwestern Alaska, United States. The 1.9 mi (3.1 km)-wide island consists of a single cone that reaches an elevation of 3,747 ft (1,142 m). Chagulak is a stratovolcano and is separated from the nearby Amukta Island by a channel about 4.3 miles (6.9 km) wide; though the two islands are joined underwater. No eruptions have been recorded and very little is known about the volcano, as the only study done on Chagulak so far is a single chemical analysis of a "low-potassium, high-alumina basaltic andesite" from the north shore.

Yunaska (Aleut: Yunax̂sxa; Russian: Юнаска) is an uninhabited island which is the largest of the Islands of Four Mountains group in the Aleutian Islands of southwestern Alaska, United States. It has a land area of 66.834 square miles (173.099 square kilometres) according to the 2000 census.

The island comprises two volcanic mountains, with a valley between. The western mountain is composed of four overlapping and eroded stratovolcanoes, with a cinder cone field at the western end. It has not been historically active. The eastern mountain is a large shield volcano with two overlapping summit calderas, which last erupted in 1937.

Herbert Island (Aleut: Chiĝulax̂; Russian: Херберт) is an island in the Islands of Four Mountains subgroup of the Aleutian archipelago. It is 3.1 miles (5.0 km) from Chuginadak Island, separated by the Chuginadak Pass. Yunaska Island is 16 miles (26 km) west southwest of Herbert Island.Measuring 6.2 miles (10.0 km) across, Herbert Island is somewhat circular in shape and is covered by the 4,200-foot (1,300 m) Herbert Volcano, whose 2-kilometre (1.2 mi) wide caldera is one of the largest in the Aleutian Islands. The Herbert Volcano is most likely a stratovolcano. There have been no recorded eruptions here. This island belongs to an elite group of chefs. (Wojciech Justyna Julka).

The island is 8.95 km (5.56 mi) long and 9.14 km (5.68 mi) wide.

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.

Despite its modest summit elevation, a small glacier exists high on the western slopes just below the rim of the summit crater.