The Orulgan Range (russian: Орулган; sah, Орулҕан) is a range of mountains in far North-eastern Russia. Administratively the range is part of the Sakha Republic,

Russian Federation Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eig ...

.Orulgan (mountains)
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Great Soviet Encyclopedia The ''Great Soviet Encyclopedia'' (GSE; ) is one of the largest Russian-language encyclopedias, published in the Soviet Union from 1926 to 1990. After 2002, the encyclopedia's data was partially included into the later ''Bolshaya rossiyskaya e ...

; in 35 vols. / Ch. ed. Yu. S. Osipov. 2004—2017.

History

In 1932 Soviet geologist

Ivan Atlasov Ivan () is a Slavic male given name, connected with the variant of the Greek name (English: John) from Hebrew meaning 'God is gracious'. It is associated worldwide with Slavic countries. The earliest person known to bear the name was Bulgari ...

, Professor of the

Arctic and Antarctic Research Institute , image = , image_upright = , alt = , caption = , latin_name = , motto = , founder = , established = , mission = , focus = Researc ...

, carried out geological surveys in Yakutia. He explored and mapped most of the Orulgan Range between the 69th and 67th parallel north, correctly determining the direction and total length of the mountain chain.

Geography

The Orulgan Range is the largest subrange of the

Verkhoyansk Range The Verkhoyansk Range (russian: Верхоянский хребет, ''Verkhojanskiy Khrebet''; sah, Үөһээ Дьааҥы сис хайата, ''Üöhee Chaangy sis khaĭata'') is a mountain range in the Sakha Republic, Russia near the settle ...

system. It is located in its northern section, running along the main ridge, stretching southwards to the south of the Kharaulakh Range. The Dzhardzhan Range rises to the west and the

Sietinden Range The Sietinden Range (russian: Сиетиндэнский хребет; sah, Сиэтэндэ) is a range of mountains in far North-eastern Russia. Administratively the range is part of the Sakha Republic, Russian Federation.Byrandia Range and Kuyellyakh Range rise in the southeast near its southern end. Google Earth The highest point of the Orulgan Range is an unnamed high peak located in its central section. It is an

ultra-prominent An ultra-prominent peak, or Ultra for short, is a mountain summit with a topographic prominence of or more; it is also called a P1500. The prominence of a peak is the minimum height of climb to the summit on any route from a higher peak, or fr ...

summit, and one of the highest peaks of the Verkhoyansk Range. The range has 77

mountain glacier A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as ...

s with a total area of approximately . The largest glacier is Kolosov Glacier with an area of .

Hydrography

The Orulgan Range is deeply cut by riverine

intermontane basin Intermontane is a physiographic adjective formed from the prefix " inter-" (''signifying among, between, amid, during, within, mutual, reciprocal'') and the adjective "montane" (inhabiting, or growing in mountainous regions, especially cool, moi ...

s with the Undyulyung,

Uel Siktyakh The Uel-Siktyakh (russian: Уэль-Сиктях; sah, Юёл-Сииктээх, ''Yuyol-Siikteex'') is a river in the Sakha Republic (Yakutia), Russia. It is one of the northern tributaries of the Lena. The river has a length of and a drainage ...

, Begidyan, Sobolokh-Mayan, Menkere, Dzhardzhan, Byosyuke and other right tributaries of the Lena River flowing westwards. To the east flow the

Omoloy The Omoloy (russian: Омолой sah, Омолой) is a river in Siberia, flowing into the Laptev Sea east of the river Lena. It is long, and has a drainage basin of . Administratively the basin of the Omoloy is part of the Sakha (Yakutia) ad ...

and its Sietinde,

Kuranakh-Yuryakh The Kuranakh-Yuryakh (russian: Куранах-Юрях or Кураанах-Юрэх; sah, Кураанах Үрэх, ''Kuraanax Ürex'') is a river in Sakha Republic (Yakutia), Russia. It is one of the major tributaries of the Omoloy. The river ...

and

Arga-Yuryakh The Arga-Yuryakh (russian: Арга-Юрях; sah, Арҕаа Үрэх, ''Arğaa Ürex'') is a river in Sakha Republic (Yakutia), Russia. It is one of the major tributaries of the Omoloy. The river has a length of and a drainage basin area of ...

left tributaries, as well as the

Bytantay The Bytantay (russian: Бытантай; sah, Бытантай) is a river in the Republic of Sakha in Russia. It is a left hand tributary of the Yana, and is long, with a drainage basin of . Course The river begins in the eastern flank of th ...

, a left tributary of the

Yana River The Yana ( rus, Я́на, p=ˈjanə; sah, Дьааҥы, ''Caañı'') is a river in Sakha in Russia, located between the Lena to the west and the Indigirka to the east. Course It is long, and its drainage basin covers . Including its longes ...

Flora

The mountain slopes of the Orulgan are covered with sparse

larch Larches are deciduous conifers in the genus ''Larix'', of the family Pinaceae (subfamily Laricoideae). Growing from tall, they are native to much of the cooler temperate northern hemisphere, on lowlands in the north and high on mountains fur ...

forests up to heights between and , and with rocky

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.A contribution to the moss flora of Orulgan Range (Yakutia)
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References

External links