Mount Recheshnoi (also spelled Recheschnoi) is a heavily eroded

stratovolcano A stratovolcano, also known as a composite volcano, is a typically conical volcano built up by many alternating layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with ...

located near the center of the SW lobe of

Umnak Island Umnak (; ) is one of the Fox Islands of the Aleutian Islands. With 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 Moun ...

in the

Aleutian Islands The Aleutian Islands ( ; ; , "land of the Aleuts"; possibly from the Chukchi language, Chukchi ''aliat'', or "island")—also called the Aleut Islands, Aleutic Islands, or, before Alaska Purchase, 1867, the Catherine Archipelago—are a chain ...

Alaska Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...

. The northeast flank of Recheshnoi has one of the hottest and most extensive thermal areas in Alaska. The Geyser Bight

geothermal Geothermal is related to energy and may refer to: * Geothermal energy, useful energy generated and stored in the Earth * Geothermal activity, the range of natural phenomena at or near the surface, associated with release of the Earth's internal he ...

area consists of six zones of thermal springs and two

fumarolic A fumarole (or fumerole) is a vent in the surface of the Earth or another rocky planet from which hot volcanic gases and vapors are emitted, without any accompanying liquids or solids. Fumaroles are characteristic of the late stages of volcani ...

areas along upper Geyser Creek and contains the only known

geyser A geyser (, ) is a spring with an intermittent water discharge ejected turbulently and accompanied by steam. The formation of geysers is fairly rare and is caused by particular hydrogeological conditions that exist only in a few places on Ea ...

s in the state. In three locations in 1988 here have been found 5 active geysers up to 2 m high and 9 natural fountains up to 0.7 m high. Other thermal areas occur at Hot Springs Cove and Partov Cove on the isthmus between Recheshnoi and

Mount Okmok Mount Okmok is a volcano on eastern Umnak Island, in the central-eastern Aleutian Islands of Alaska. Part of the Aleutian Volcanic Arc, it was formed by the subduction of the oceanic Pacific Plate under the North American Plate. Okmok is a ...

. The most recent eruption of Mount Recheshnoi was on the flank of the volcano around 3,000 years ago.

References

External sources

*
Volcanoes of the Alaska Peninsula and Aleutian Islands-Selected Photographs
*
Alaska Volcano Observatory
Landforms of Aleutians West Census Area, Alaska Stratovolcanoes of Alaska One-thousanders of the United States Potentially active volcanoes Aleutian Range Umnak Mountains of Unorganized Borough, Alaska Volcanoes of Unorganized Borough, Alaska {{AleutiansWestAK-geo-stub