The Ulakhan-Sis Range ( rus, Улахан-Сис; sah, Улахан Сис) is a mountain range in the

Sakha Republic Sakha, officially the Republic of Sakha (Yakutia),, is the largest republic of Russia, located in the Russian Far East, along the Arctic Ocean, with a population of roughly 1 million. Sakha comprises half of the area of its governing Far Eas ...

Far Eastern Federal District The Far Eastern Federal District (russian: Дальневосто́чный федера́льный о́круг, ''Dalnevostochny federalny okrug'') is the largest of the federal districts of Russia, eight federal districts of Russia but t ...

, Russia.Улахан-Сис (Ulakhan-Sis)
/

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. This range is one of the areas of Yakutia where

baydzharakh Baydzharakh (russian: Байджарах; Yakut: ) is a term based in the Yakut language, referring to a roughly cone-shaped natural rock formation. They are usually composed of siltstone, silty peat or loam. Description Baydzharakhs form owing ...

s are found.

Kigilyakh Kigilyakh or kisiliyakh ( rus, кигиляхи; sah, киһилээх, meaning "stone person") are tall, pillar-like natural rock formations looking like tall monoliths standing more or less isolated. Usually they are composed of granite or s ...

rock formation A rock formation is an isolated, scenic, or spectacular surface rock outcrop. Rock formations are usually the result of weathering and erosion sculpting the existing rock. The term ''rock formation'' can also refer to specific sediment ...

s are also found on this range, some of them quite impressive.Ykt - Вернулись из Гранитных Городов Улахан Сис
/ref>

History

The Ulakhan-Sis was first mapped in the summer of 1870 by geographer and ethnologist Baron

Gerhard von Maydell Gerhard Gustav Ludwig von Maydell, Baron von Maydell, (russian: Гергард Людвигович Майдель; 1 May 1835 in Tartu – 17 August 1894 in Koblenz, Germany) was a Russian explorer, cartographer and ethnologist of Estonian desc ...

(1835–1894) during his pioneering research of East Siberia.Siberian History - МАЙДЕЛЬ Гергард Людвигович
/ref> Kular is an abandoned settlement that was located in the range area.

Geography

The Ulakhan-Sis Range rises in the southeastern limits of the

Yana-Indigirka Lowland The Yana-Indigirka Lowland (russian: Яно-Индигирская низменность; sah, Дьааҥы - Индигир намтала) is a large, low alluvial plain located in northern Siberia, Far Eastern Federal District, Russia. Admini ...

, northwest and west of the Kolyma Lowland and northeast of the

Aby Lowland The Aby Lowland (russian: Абыйская низменность; sah, Абый Намтала, translit=Abıy Namtala) is a low alluvial plain located in the Sakha Republic, Far Eastern Federal District, Russia. Administratively most of the te ...

, along the interfluve of the Erna and

Shandrin The Shandrin ( rus, Шандрин) is a river in Yakutia ( Sakha Republic), Russia. It has a length of and a drainage basin of . It is a left tributary of the Indigirka, flowing across the Allaikhovsky District. There are no inhabited places ...

rivers in the northwest,

Shangina The Shangina ( rus, Шангина; sah, Шангин) is a river in Yakutia ( Sakha Republic), Russia. It has a length of and a drainage basin of . It is a right tributary of the Indigirka, flowing across the Middle Kolyma and Aby districts. ...

in the south, and Khatysty 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 ...

in the southeast. The main ridge stretches in a roughly east/west direction from the western end of the smaller

Suor Uyata The Suor Uyata ( rus, Суор-Уята; sah, Суор Уйата) is a mountain range in the Sakha Republic, Far Eastern Federal District, Russia. The village of Andryushkino, a small inhabited locality of the Lower Kolyma District, is located ...

(Суор-Уята) to the east and the headwaters of the

Sundrun River The Sundrun (russian: Сундрун) is a river in the Sakha Republic (Yakutia) of the Russian Federation. It is long, and has a drainage basin of . Course It has its sources in the Ulakhan-Sis Range and flows roughly northeastwards across the ...

to the

Indigirka The Indigirka ( rus, Индиги́рка, r=; sah, Индигиир, translit=Indigiir) is a river in the Sakha Republic in Russia between the Yana (river), Yana to the west and the Kolyma River, Kolyma to the east. It is long. The area of its ...

for about .

Google Earth Google Earth is a computer program that renders a 3D computer graphics, 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposition, superimposing satellite images, aerial photography, and geog ...

The highest peak is high Vilka. To the north rises the

Kondakov Plateau The Kondakov Plateau ( rus, Кондаковское плоскогорье; sah, Кондаков хаптал хайалаах сирэ) is a mountain plateau in the Sakha Republic, Far Eastern Federal District, Russia. The town of Chokurdakh ...

, a lower and wider extension of the range. In the west, the

Polousny Range The Polousny Range ( rus, Полоусный кряж; sah, Полоуснай томтороот) is a mountain range in the Sakha Republic, Far Eastern Federal District, Russia.Полоусный кряж (Polousny Range) / Great Soviet Encyclo ...

, a prolongation of the range on the other side of the Indigirka River, stretches further westwards. To the south, at a certain distance, rises the Alazeya Plateau. Rivers

Bolshaya Ercha The Bolshaya Ercha (russian: Большая Эрча) is a river in the Sakha Republic (Yakutia), Russia. It is a tributary of the Indigirka. The river has a length of and a drainage basin area of . The river flows north of the Arctic Circle, ac ...

, a tributary of the Indigirka, and

, of the

Alazeya The Alazeya ( rus, Алазея, r=; sah, Алаһыай, translit=Alahıay) is a river in the northeastern part of Yakutia, Russia which flows into the Arctic between the basins of the larger Indigirka to the west and the Kolyma to the east. Mou ...

basin, have their sources in the range. The range has mountains of middle height and smooth slopes with

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 furt ...

forests at the bottom of the valleys.Indigirka
/

Great Russian Encyclopedia The ''Great Russian Encyclopedia'' (GRE; russian: Большая российская энциклопедия, БРЭ, transliterated as ''Bolshaya rossiyskaya entsiklopediya'' or academically as ''Bolšaja rossijskaja enciklopedija'') is a u ...

in 35 vols. / Ch. ed. Yu.S. Osipov . - M, 2004—2017.

References

External links

*{{commonscat inline, Ulakhan-Sis
Ulakhan-Sis stones: a white spot on the map of Yakutia - National Geographic
Mountain ranges of the Sakha Republic