Udokan Range
{{Short description|Mountain range in Sakha Republic}}
{{Redirect|Udokan|the volcanic field|Udokan Plateau}}
{{Infobox mountain
|name= Udokan Range
хребет Удокан
|photo= Вулкан Аку, Каларский район.jpg
|photo_caption= Remnants of ancient volcanic activity in the western Udokan Range.
|photo_size=
|country=Russia
|region_type=Federal subject
|region=Zabaykalsky Krai /
Yakutia / Amur Oblast
|parent=Stanovoy Highlands
South Siberian System
|border=
|highest= Unnamed
|elevation_m= 2570
|coordinates = {{coord|56|40|20|N|119|07|32|E|display=inline|name=}}
|length_orientation = SW / NE
|length_km=210
|width_km=50
|area_km2=
|range_coordinates = {{coord|56|50|N|119|20|E|type:mountain|format=dms|display=inline,title}}
|geology=Gneiss, crystalline schist, volcanic rock
|period= Precambrian
|orogeny=
|map=Russia Zabaykalsky Krai
|map_size=
|map_caption= Location in Transbaikalia
| easiest_route= From Chara Airport
}}
The Udokan Range ({{langx|ru|хребет Удокан}}) is a mountain range in Sakha Republic (Yakutia) and Zabaykalsky Krai, Russian Federation.{{cite web |title=Удокан, хребет|publisher=Энциклопедия Забайкалья |language=Russian |trans-title=Udokan, mountains|url=http://ez.chita.ru/encycl/concepts/?id=2558|accessdate=21 September 2021}} {{in lang|ru}} The nearest town is Chara.Google Earth
There is copper mining in the range at the Udokan mine, part of the Udokan Ore Region that includes the Kalar and Kodar ranges.[http://bse.sci-lib.com/article113643.html Udokan Ore Region] / Great Soviet Encyclopedia: in 30 vols. - Ch. ed. A.M. Prokhorov. - 3rd ed. - M. Soviet Encyclopedia, 1969-1978. A stretch of the Baikal–Amur Mainline passes through the range following the valley of the Khani river.
History
{{see also|Aeroflot accidents and incidents in the 1960s}}
The Udokan was first described and mapped in 1857 by A.F. Usoltsev, Lieutenant of the Corps of Military Topographers of the Russian Imperial Army.Obruchev V. A., [https://agesmystery.ru/rubriki/ekspedicii-naxodki-i-sokrovishha/shvarc-na-yugo-vostoke-sibiri/ Шварц на юго-востоке Сибири (Schwartz in the southeast of Siberia)] (in Russian)
On 5 July 1965 an Aeroflot Antonov An-2R struck a mountain of the Udokan Range on a flight between Ust-Nyukzha and Chara. The aircraft encountered poor weather with low clouds and rain while flying along the Khani river valley. The plane struck the side of a mountain of the range at {{convert|1800|m|ft|abbr=on}}. The wreckage was found on 16 July 1969. There were three fatalities. The An-2 had been operating a Tynda–Ust-Nyukzha–Chara cargo service.[https://aviation-safety.net/database/record.php?id=19660226-0 Accident description for CCCP-79910 - Aviation Safety Network]
Geography
The Udokan Range rises in the central area of the Stanovoy Highlands, to the south of the upper course of the Chara, a left tributary of the Olyokma. It stretches from SW to NE for roughly {{convert|255|km|abbr=on}} from the middle northern slopes of the Kalar Range to the river valley of the Olyokma, a right tributary of the Lena. To the north it borders with the Olyokma-Chara Plateau —in the upper reaches of the Chara river.
To the south the range is bound by the valley of the Khani river, a left tributary of the Olyokma. The highest summit is a {{convert|2570|m|ft}} high unnamed ultra prominent peak.{{cite web|url=https://maps.vlasenko.net/smtm1000/n-51.jpg|title=N-49 Chart (in Russian)|access-date=21 September 2021}}[http://bse.sci-lib.com/article113642.html Udokan] / Great Soviet Encyclopedia: in 30 vols. / Ch. ed. A.M. Prokhorov. - 3rd ed. - M. Soviet Encyclopedia, 1969-1978.
The range is part of the Baikal Rift Zone and displays signs of volcanic relief at its southwestern end, in the area where it merges with the Kalar Range.
=Hydrography=
A number of rivers have their sources in the range, including the Tokko and the Kalar. There are also glacial landforms and sediments that are remnants of Pleistocene glaciation.
| valign="top"
|File:Operational Navigation Chart D-7, 6th edition.jpg topographical map showing the Udokan Range in the lower part.]] |
Flora
The lower slopes of the range are mainly covered by larch taiga, with pre-alpine woodland, mountain tundra and bare rocky summits (golets) at higher elevations.
See also
References
{{Reflist}}
{{Authority control}}
Category:Mountain ranges of Russia
Category:Mountain ranges of the Sakha Republic
Category:Mountains of Zabaykalsky Krai
{{ZabaykalskyKrai-geo-stub}}
{{SakhaRepublic-geo-stub}}