{{Short description|Caldera in eastern Kamchatka, Russia}} {{for|the Romanian commune called Uzon in Hungarian|Ozun}} {{Infobox mountain | name = Uzon | image =Uzon_caldera.jpg | image_caption = The Uzon and Geyzernaya calderas. Sharp-peaked Kronotsky volcano and flat-topped Krasheninnikov volcano appear in the distance beyond the north caldera rim. | elevation_m = 1,617 | elevation_ref = | prominence = | location = Kamchatka, Russia | range = | coordinates = {{coord|54.50|N|159.97|E|type:mountain}} | topo = | type = Volcanic calderas | age = | last_eruption = 200 ± 300 years | first_ascent = | easiest_route = | mapframe = yes | mapframe-wikidata = yes | mapframe-zoom = 9 }}

'''Uzon''' ({{langx|ru|Узон}}) is a 9 by 12&nbsp;km volcanic caldera located in the eastern part of Kamchatka Peninsula, Russia. Together with the Geyzernaya caldera it hosts the largest geothermal field in the Kamchatka Peninsula. The calderas were formed in the mid-Pleistocene in several large eruptions that deposited 20–25&nbsp;km<sup>3</sup> of ignimbrite over a wide area. Lake Dalny fills a Holocene maar in the northeast of Uzon Caldera.

The Uzon Caldera is a location of the occurrence of extremophile micro-organisms due to its high localized temperatures.(C.Michael Hogan. 2010)

Michael Palin visited Uzon in the first episode of his 1997 travelogue series, ''Full Circle with Michael Palin''.<ref>''Full Circle'', Michael Palin, 2010, Orion Books.</ref>

==See also== * List of volcanoes in Russia

== References == {{Reflist}} * C.Michael Hogan. 2010. [http://www.eoearth.org/article/Extremophile?topic=49540 ''Extremophile'']. eds. E.Monosson and C.Cleveland. Encyclopedia of Earth. National Council for Science and the Environment, Washington DC * {{cite gvp|vn=300170|name=Uzon}}

Category:Volcanoes of the Kamchatka Peninsula Category:Calderas of Russia Category:Diatremes of Russia Category:Volcanic crater lakes Category:Holocene calderas Category:Pleistocene calderas Category:Holocene Asia Category:Pleistocene Asia

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