Siilhem Mountains (, ; , ), or Sailughem, is a

mountain range A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have aris ...

in the southeastern part of

Altai Mountains The Altai Mountains (), also spelled Altay Mountains, are a mountain range in Central Asia, Central and East Asia, where Russia, China, Mongolia, and Kazakhstan converge, and where the rivers Irtysh and Ob River, Ob have their headwaters. The ...

, Russia, on the border of

Altai Republic The Altai Republic, also known as the Gorno-Altai Republic, is a republic of Russia located in southern Siberia. The republic borders Kemerovo Oblast to the north, Khakassia to the northeast, Tuva to the east, Altai Krai to the west, as well ...

and

Mongolia Mongolia is a landlocked country in East Asia, bordered by Russia to the north and China to the south and southeast. It covers an area of , with a population of 3.5 million, making it the world's List of countries and dependencies by po ...

.''

Great Soviet Encyclopedia The ''Great Soviet Encyclopedia'' (GSE; , ''BSE'') 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 ''Great Russian Enc ...

'' In Russia, its northern slopes are in the

Kosh-Agachsky District Kosh-Agachsky District (; , ''Koş-Agaş aymak''; , ''Qosağaş audany'') is an administrativeLaw #101-RZ and municipalLaw #10-RZ district (raion), one of the ten in the Altai Republic, Russia. It is located in the south and southeast of the repu ...

, in the southeastern part of the

Ukok Plateau Ukok Plateau () is a plateau covered by grasslands located in southwestern Siberia, in the Altai Mountains region of Russia near the borders with China, Kazakhstan and Mongolia. The plateau is recognized as part of the UNESCO World Heritage Sit ...

.Хребет Сайлюгем
It is the southern border of the Chuya Steppe.Как обеспечить сохранение экосистемы хребта Сайлюгем?
/ref> The range stretches 130 km north-east from 49° N and 86° E towards the western extremity of the

Sayan Mountains The Sayan Mountains (, ; ) are a mountain range in southern Siberia spanning southeastern Russia (Buryatia, Irkutsk Oblast, Krasnoyarsk Krai, Tuva and Khakassia) and northern Mongolia. Before the rapid expansion of the Tsardom of Russia, the mou ...

in 51° 60′ N (sic) and 89° E. Their mean elevation is 1,500 to 1,750 metres (5000 to 5500 feet). The snow-line runs at 2,000 m on the northern side and at 2,400 m on the southern, and above it the rugged peaks tower up some 975 metres (3200 feet) more. It is a watershed between the sources of rivers Argut and

Chuya The Chuya (; , ''Çuy'') is a river in the Altai Republic in Russia, a right tributary of the Katun ( Ob's basin). The Chuya is long, and its drainage basin covers . The river freezes in October or early November and thaws in late April. The t ...

(

Ob River The Ob (; ) is a major river in Russia. It is in western Siberia, and with its tributary the Irtysh forms the world's seventh-longest river system, at . The Ob forms at the confluence of the Biya and Katun which have their origins in the Alta ...

basin) and the rivers of the

Khovd River Khovd River (, ) is a river in western Mongolia. It flows from Tavan Bogd mountain of the Altai Mountains in Bayan-Ölgii Province to Khar-Us Lake. The length of the river is 516 kilometres. See also *List of rivers of Mongolia This is a ...

basin. The highest peaks are Sary-Nokhoit (3502 m.) and Sarzhematy (3499 m.). In the Mongolian part, on the Southern slopes there is Siilkhemiin National Park. In Russia, there is Saylyugemsky National Park, bordering with the Mongolian one, within the Kosh-Agach District. It is a protected area of Russia and has three zones: Saylyugem, Ulandryk, and Argut.Национальный парк «Сайлюгемский»
/ref>Saylyugemsky National Park official website
/ref>

References

{{coord, 49.4578, N, 88.8137, E, source:wikidata, display=title Altai Mountains Mountain ranges of Russia Mountain ranges of Mongolia Altai Republic