Yudoma-Maya Highlands

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Yudoma-Maya Highlands
Юдомо-Майское нагорье
Юдома-Маайа хаптал хайалаах сиринэн
Mayaokt.jpg
View of the Maya River in mid October
Highest point
Peak Shpil Tarbagannakh
Elevation 2,213 m (7,260 ft)
Coordinates 61°09′18″N138°27′04″E / 61.15500°N 138.45111°E / 61.15500; 138.45111
Dimensions
Length500 km (310 mi)
Width200 km (120 mi)
Geography
Relief Map of Far Eastern Federal District.jpg
Red triangle with thick white border.svg
Location in the Far Eastern Federal District, Russia
Country Russia
Federal subject Sakha Republic
Khabarovsk Krai
Range coordinates 59°0′N136°0′E / 59.000°N 136.000°E / 59.000; 136.000 Coordinates: 59°0′N136°0′E / 59.000°N 136.000°E / 59.000; 136.000
Parent range South Siberian System
Geology
Age of rock Late Ordovician
Type of rock Sandstone, clay, shale

The Yudoma-Maya Highlands (Russian:Юдомо-Майское нагорье, tr. Yudomo-Maiskoye Nagorye; [1] Yakut : Юдома-Маайа хаптал хайалаах сиринэн) are a mountainous area in the Sakha Republic and Khabarovsk Krai, Far Eastern Federal District, Russia.

Contents

The settlement of Allakh-Yun is located in the area of the highlands on the right bank of the Allakh-Yun River.

History

The area of the Yudoma-Maya and the Aldan highlands, between the basins of the Aldan River and the Yudoma, was uncharted territory well until the 1930s. It was first surveyed in 1934 by geologist Yuri Bilibin (1901—1952) together with mining engineer Evgeny Bobin (1897—1941) in the course of an expedition sent by the government of the USSR. Bilibin and Bobin made a thorough topographic survey of the mountainous regions leading separate research parties. They described the highlands as "a disordered jumble of round hills with soft outlines". [2]

Geography

The Yudoma-Maya Highlands are located in the upper basin of the Maya River, a tributary of the Aldan River, at the southern end of the Sakha Republic and the western limits of Khabarovsk Krai. [3] They are bound to the west by the Skalisty Range and the Sette-Daban subranges of the Verkhoyansk Range, and to the north by the Suntar-Khayata Range. The highlands reach the valley of the Okhota River to the east, and to the south they are limited by the northern end of the Dzhugdzhur Range. The average heights range between 800 metres (2,600 ft) and 1,200 metres (3,900 ft). [4]

The highest point is 2,213 meters (7,260 ft) high Shpil Tarbagannakh (Шпиль-Тарбаганнах). Other summits are 2,167 meters (7,110 ft) high Tarbaganakhskі Goltsi (Тарбаганахські Гольцы), 2,132 meters (6,995 ft) high Uemlyakhskі Goltsi (Уемляхські Гольцы) and 1,510 meters (4,950 ft) high Chelat (Челат). [5]

Climate

The highlands have a harsh continental climate. January temperatures range from −34 °C (−29 °F) to −43 °C (−45 °F). The coldest temperatures recorded reach between −58 °C (−72 °F) and −62 °C (−80 °F). In summer the average July temperature in the valleys does not exceed 18 °C (64 °F). Precipitation is between 250 millimeters (9.8 in) and 800 millimeters (31 in) per year. Most of the yearly precipitation falls in the second half of summer in the form of rain.

Flora

Large swathes of the highlands are covered by taiga up to elevations between 1,100 metres (3,600 ft) and 1,300 metres (4,300 ft). The areas adjacent to the valleys are covered with larch and pine forests, especially in the southern region. Above 500 metres (1,600 ft) there is spruce and birch taiga up to a height of 1,000 metres (3,300 ft). In the northern parts of the highlands there are thickets of dwarf cedar and mountain tundra above 1,200 metres (3,900 ft). [4]

Related Research Articles

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Verkhoyansk Range Mountain range in eastern Siberia, Russia

The Verkhoyansk Range is a mountain range in the Sakha Republic, Russia. It is part of the East Siberian Mountains.

Maya (river)

The Maya is a river in Khabarovsk Krai and Sakha, Russia. It is a right tributary of the Aldan of the Lena basin. The length of the river is 1,053 kilometres (654 mi). The area of its basin 171,000 square kilometres (66,000 sq mi). The Maya freezes up in late October and stays under the ice until May. The Yudoma is one of the biggest tributaries of the Maya. The river is navigable up to 500 kilometres (310 mi) upstream from its mouth.

Ust-Maya Urban-type settlement in Sakha Republic, Russia

Ust-Maya is an urban locality and the administrative center of Ust-Maysky District of the Sakha Republic, Russia, southeast of Yakutsk, the capital of the republic. As of the 2010 Census, its population was 2,293.

Aldansky District District in Sakha Republic, Russia

Aldansky District is an administrative and municipal district, one of the thirty-four in the Sakha Republic, Russia.

Eldikan Urban-type settlement in Sakha Republic, Russia

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Ust-Maysky District District in Sakha Republic, Russia

Ust-Maysky District is an administrative and municipal district, one of the thirty-four in the Sakha Republic, Russia. It is located in the east of the republic and borders with Oymyakonsky District in the northeast, Khabarovsk Krai in the east and south, Aldansky District in the southwest, Amginsky District in the west, Churapchinsky and Tattinsky Districts in the northwest, and with Tomponsky District in the north. The area of the district is 95,300 square kilometers (36,800 sq mi). Its administrative center is the urban locality of Ust-Maya. Population: 8,629 (2010 Census); 11,568 ; 20,337 (1989 Census). The population of Ust-Maya accounts for 33.9% of the district's total population.

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Suntar-Khayata Range

Suntar-Khayata Range is a granite mountain range rising along the border of the Sakha Republic in the north with Amur Oblast and Khabarovsk Krai in the south.

Yudoma

The Yudoma is a river in eastern Siberia in the Yudoma-Maya Highlands near the Okhotsk Coast. It joins the Maya which joins the Aldan which joins the Lena which flows into the Arctic Ocean. Its northern headwaters are in the Suntar-Khayata Range. To the east is the Yudoma Range and then the Okhota, to the south the Maya and to the northwest, the Allakh-Yun, another tributary of the Aldan.

The Allakh-Yun is a river in Sakha Republic and Khabarovsk Krai, Russia. It is a right tributary of the Aldan. It is 586 kilometres (364 mi) long, and has a drainage basin of 24,200 square kilometres (9,300 sq mi).

Lena Plateau

The Lena Plateau, also known as Prilensky Plateau, is one of the great plateaus of Siberia. Administratively it is mostly within the Sakha Republic (Yakutia), with a small sector in the Irkutsk Oblast, Far Eastern Federal District, Russia. The plateau is named after the Lena River, which flows across it.

Aldan Highlands Mountain range in Russia

The Aldan Highlands, or Aldan Plateau are a mountainous area in the Sakha Republic, Far Eastern Federal District, Russia.

Sette-Daban

The Sette-Daban is a range of mountains in far North-eastern Russia. Administratively the range belongs partly to the Sakha Republic and partly to the Khabarovsk Krai of the Russian Federation. The area of the Sette-Daban is largely uninhabited. The R504 Kolyma Highway passes through the northern part of the range.

Anabar Plateau

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Patom Highlands

The Patom Highlands are a mountainous area in Eastern Siberia, Russia. Administratively most of the territory of the uplands is part of Irkutsk Oblast, with a smaller section in northern Transbaikal Krai.

Khentei-Daur Highlands Mountain range in Russia

The Khentei-Daur Highlands, also known as Khentei-Chikoy Highlands(Хэнтэ́й-Чико́йское наго́рье) are a mountainous area in the Transbaikal Krai, Far Eastern Federal District, Russia.

Yana-Oymyakon Highlands

The Yana-Oymyakon Highlands, also known as Oymyakon Highlands, are a mountainous area in the Sakha Republic, Khabarovsk Krai and Magadan Oblast, Far Eastern Federal District, Russia. The area is named after the main features of the highlands.

Skalisty Range

The Skalisty Range is a range of mountains in far North-eastern Russia, part of the East Siberian System. Administratively the mountain chain belongs to the Sakha Republic. The area of the range is remote and desolate. The R504 Kolyma Highway passes through the northern part of the range.

Ulakhan-Bom

The Ulakhan-Bom is a range of mountains in far North-eastern Russia, a southern prolongation of the Verkhoyansk Range, part of the East Siberian System. Administratively the mountain chain belongs to the Sakha Republic.

References