The Delyun-Uran Range () is a mountain range in

Irkutsk Oblast Irkutsk Oblast (; ) is a federal subjects of Russia, federal subject of Russia (an oblast), located in southeastern Siberia in the basins of the Angara River, Angara, Lena River, Lena, and Nizhnyaya Tunguska Rivers. The administrative center is ...

and

Buryatia Buryatia, officially the Republic of Buryatia, is a republic of Russia located in the Russian Far East. Formerly part of the Siberian Federal District, it has been administered as part of the Far Eastern Federal District since 2018. To its nort ...

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

, part of the

Stanovoy Highlands The Stanovoy Highlands () or Stanovoy Uplands is a mountain range in the Transbaikal region of Siberia, Russia. Geography The Stanovoy Highlands are a mountainous area between the Patom Highlands to the north and the Vitim Plateau to the south. ...

. The nearest airport is Bodaybo Airport.

Google Earth Google Earth is a web mapping, web and computer program created by Google that renders a 3D computer graphics, 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposition, superimposing satelli ...

History

This remote mountain area was first explored by

Peter Kropotkin Pyotr Alexeyevich Kropotkin (9 December 1842 – 8 February 1921) was a Russian anarchist and geographer known as a proponent of anarchist communism. Born into an aristocratic land-owning family, Kropotkin attended the Page Corps and later s ...

and Ivan Polyakov during the 1866 Olyokma- Vitim expedition of the East Siberian branch of the Imperial Russian Geographical Society. Kropotkin named the range after the area of conspicuous

rapids Rapids are sections of a river where the river bed has a relatively steep stream gradient, gradient, causing an increase in water velocity and turbulence. Flow, gradient, constriction, and obstacles are four factors that are needed for a rapid t ...

of the Vitim river in the gorge where it crosses the range northwards (Делюн-Уранский порог). He described the range as a "desolate, gloomy place". The Vitim Nature Reserve was established in the eastern part of the range and neighboring mountainous areas in 1982.

Geography

This mountain range is located in the

Baikal Rift Zone The Baikal Rift Zone is a series of continental rifts centered beneath Lake Baikal in southeastern Russia. Current strain in the rifts tends to be extending with some shear movement. A series of basins form along the zone for more than , creatin ...

and it is part of the Baikal-Stanovoy Region. The Delyun-Uran is the northernmost subrange of the

. It runs roughly parallel to the Northern Muya Range just north of it. The range stretches from southwest to northeast for about 350 km from the Churo River, a tributary of the upper course of the Upper Angara river, to lake Nichatka. The

gorge A canyon (; archaic British English spelling: ''cañon''), gorge or chasm, is a deep cleft between escarpments or cliffs resulting from weathering and the erosion, erosive activity of a river over geologic time scales. Rivers have a natural tend ...

s of the Vitim River are located in the eastern section, dividing the upper course of the Vitim from its lower basin. The western section of the range is in Buryatia and the eastern in Irkutsk Oblast. A small part at the eastern end is in

Zabaykalsky Krai Zabaykalsky Krai is a federal subjects of Russia, federal subject of Russia (a krai), located in the Russian Far East. Its administrative center is Chita, Zabaykalsky Krai, Chita. As of the Russian Census (2010), 2010 Census, the population was ...

. The Vitim crosses the range in its northeastern part. The highest point of the range is a high peak located between the Upper Angara sources and the Mamakan uppermost reaches. A rare, exposed

argillite Argillite () is a fine-grained sedimentary rock composed predominantly of Friability, indurated clay particles. Argillaceous rocks are basically lithified muds and Pelagic sediment, oozes. They contain variable amounts of silt-sized particles. T ...

outcrop is found in the range.

Hydrography

River Upper Angara, flowing into

Lake Baikal Lake Baikal is a rift lake and the deepest lake in the world. It is situated in southern Siberia, Russia between the Federal subjects of Russia, federal subjects of Irkutsk Oblast, Irkutsk Oblasts of Russia, Oblast to the northwest and the Repu ...

, originates in the slopes of the range. The Mamakan cuts across the range. Lake Oron is located south of the eastern section of the range.

Flora

The slopes of the range are mainly covered with mountain

taiga Taiga or tayga ( ; , ), also known as boreal forest or snow forest, is a biome characterized by coniferous forests consisting mostly of pines, spruces, and larches. The taiga, or boreal forest, is the world's largest land biome. In North A ...

, with pre-alpine woodland and

mountain tundra Alpine tundra is a type of natural region or biome that does not contain trees because it is at high elevation, with an associated harsh climate. As the latitude of a location approaches the poles, the threshold elevation for alpine tundra gets ...

at higher elevations.Baikal Nature - Делюн-Уранский хребет
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References

External links

Делюн-Уранский хребетСеверо-Муйский и Делюн-Уранский хребты - Tourism''Additions to the Lichen Biota of SE Siberia''Северо-Муйский и Делюн-Уранский хребты
Stanovoy Highlands Mountain ranges of Russia Mountains of Buryatia Mountains of Irkutsk Oblast {{IrkutskOblast-geo-stub