Altai Mountains


The Altai Mountains are a mountain range in Central Asia, where Russia, China, Mongolia, and Kazakhstan converge, and where the rivers Irtysh and Ob have their headwaters. The highest summit of the range is Belukha, whose summit reaches 4,506 m above sea level. The massif merges with the Sayan Mountains in the northeast, and gradually becomes lower in the southeast, where it merges into the high plateau of the Gobi Desert. In the southwest, it is separated from the higher Tian Shan range by the Junggar Basin. It spans from about 45° to 52° N and from about 84° to 99° E.
The region is inhabited by a sparse but ethnically diverse population, including Turkic peoples, Mongols, and Volga Germans, though predominantly represented by indigenous ethnic minorities of semi-nomadic people. The local economy is based on bovine, sheep, horse husbandry, hunting, agriculture, forestry, and mining. The now discredited Altaic language family takes its name from this mountain range.

Etymology and modern names

Altai is derived from underlying form *altañ "gold, golden" with coda -ñ underlying the -n & -y correspondence among cognates in different Turkic languages & dialects, as well as in Mongolian.
The mountains are called Altain nuruu in Khalkha Mongolian, altai-yin niruɣu in Chakhar Mongolian, and Altay tuular in the Altay language. They are also called Altaı taýlary or التاي تاۋلارى in Kazakh; Altajskije gory in Russian; Altay Taghliri in Uyghur; ā'ěrtài shānmài in Chinese ; and Arteː shanmeː in Dungan.

Geography

The Altai Mountains are a system of remote mountains in central Asia that cover an area of. The mountains stretch for from northwest to southeast. Image:Sunset at Kucherla lake.jpg|thumb|right|Lake Kucherla in the Altai Mountains
Image:GoraBeluha.jpg|thumb|right|Belukha, the highest mountain in Altay Image:Kazakhstan Altay.jpg|thumb|Altay Mountains, Kazakhstan
In the north of the region is the Sailughem Mountains, also known as Kolyvan Altai, which stretch northeast from 49° N and 86° E towards the western extremity of the Sayan Mountains in 51° 60' N and 89° E. Their mean elevation is. The snow-line runs at on the northern side and at on the southern, and above it the rugged peaks tower some higher. Mountain passes across the range are few and difficult, the chief being the Ulan-daban at , and the Chapchan-daban, at, in the south and north respectively. On the east and southeast this range is flanked by the great plateau of Mongolia, the transition being affected gradually by means of several minor plateaus, such as Ukok with Pazyryk Valley, Chuya, Kendykty, Kak,, and.
This region is studded with large lakes, e.g. Uvs above sea level, Khyargas, Dorgon and Khar, and traversed by various mountain ranges, of which the principal are the Tannu-Ola Mountains, running roughly parallel with the Sayan Mountains as far east as the Kosso-gol, and the Khan Khökhii mountains, also stretching west and east.
The north western and northern slopes of the Sailughem Mountains are extremely steep and difficult to access. On this side lies the highest summit of the range, the double-headed Belukha, whose summits reach and respectively, and give origin to several glaciers and glaciokarst formations . Altaians call it Kadyn Bazhy, but is also called Uch-Sumer.
The second highest peak of the range is in Mongolian part named Khüiten Peak. This massive peak reaches. Numerous spurs, striking in all directions from the Sailughem mountains, fill up the space between that range and the lowlands of Tomsk. Such are the Chuya Belki, having an average elevation of, with summits from and several glaciers on their northern slope; the Katun Belki, which have a mean elevation of about and are mostly snow-clad; the Kholzun range; the Korgon, highest point Mayak Shangina, the Talitsk and Selitsk ranges; as well as the Tigeretsk Range.
Several secondary plateaus of lower elevations are also distinguished by geographers. The Valley of the Katun river begins as a wild gorge on the south-west slope of Belukha; then, after a big bend, the river pierces the Katun Belki, and enters a wider valley, lying at an elevation of, which it follows until it emerges from the Altai highlands to join the Biya River. Here, the two rivers merge to form the Ob River.
The next valley is that of the Charysh, which has the Korgon and Tigeretsk Range on one side and the Talitsk and Baschelaksk Range on the other. This, too, is very fertile. The Altai, seen from this valley, presents the most romantic scenes, including the small but deep Kolyvan Lake at an altitude of, which is surrounded by fantastic granite domes and towers.
Farther west the valleys of the Uba, the Ulba and the Bukhtarma open south-westwards towards the Irtysh. The lower part of the first, like the lower valley of the Charysh, is thickly populated; in the valley of the Ulba is the Riddersk mine, at the foot of the Ivanovsk Peak, clothed with alpine meadows. The valley of the Bukhtarma, which has a length of, also has its origin at the foot of the Belukha and the Kuitun peaks, and as it falls some in about, from an alpine plateau at an elevation of to the Bukhtarma fortress, it offers the most striking contrasts of landscape and vegetation. Its upper parts abound in glaciers, the best known of which is the Berel, which descends from the Belukha. On the northern side of the range which separates the upper Bukhtarma from the upper Katun is the Katun glacier, which after two ice-falls widen out to. From a grotto in this glacier bursts tumultuously the Katun river.
The middle and lower parts of the Bukhtarma valley have been colonized since the 18th century by runaway Russian peasants, serfs, and religious schismatics, who created a free republic there on Chinese territory; and after this part of the valley was annexed to Russia in 1869, it was rapidly colonized. The high valleys farther north, on the same western face of the Sailughem range, are but little known, their only visitors being Kyrgyz shepherds.
Those of Bashkaus, Chulyshman, and Chulcha, all three leading to the alpine lake of Teletskoye, are inhabited by Telengit people. The shores of the lake rise almost sheer to over. From this lake issues the Biya, which joins the Katun at Biysk, and then meanders through the prairies of the north-west of the Altai.
Farther north the Altai highlands are continued in the Kuznetsk district, which has a slightly different geological aspect, but belongs to the Altai system. But the Abakan River, which rises on the western shoulder of the Sayan mountains, belongs to the system of the Yenisei. The Kuznetsk Ala-tau range, on the left bank of the Abakan, runs north-east into the government of Yeniseisk, while a complexus of mountains fills up the country northwards towards the Trans-Siberian Railway and westwards towards the Ob.
The Ek-tagh or Mongolian Altai, which separates the Khovd basin on the north from the Irtysh basin on the south, is a true border-range, in that it rises in a steep and lofty escarpment from the Dzungarian depression, but descends on the north by a relatively short slope to the plateau of north-western Mongolia. East of 94° E the range is continued by a double series of mountain chains, all of which exhibit less sharply marked orographical features and are at considerably lower elevations. The slopes of the constituent chains of the system are inhabited principally by nomadic Kyrgyz.
The five highest mountains of the Altai are:
The Altai-Sayan ecoregion is located at the intersection of the Central Asian and Siberian faunal provinces.
The Altai mountains are home to a diverse fauna, because of its different habitats, like steppes, northern taigas and alpine vegetation. Steep slopes are home to the Siberian ibex, whereas the rare argali is found on more gentle slopes. Deer are represented by five species: Altai wapiti, moose, forest reindeer, Siberian musk deer, and Siberian roe deer. Moose and reindeer however, are restricted to the northern parts of the mountain range. The wild boar is found in the lower foothills and surrounding lowlands. Until recently, the Mongolian gazelle was found in the Russian Altai mountains, more specifically in the Chuya River steppe close to the Mongolian border. Large predators are represented by snow leopards, wolves, Eurasian lynx, and brown bears, in the northern parts also by the wolverine. The Tien Shan dhole also lived there. Most species of the region are of Mongolian origin. The western Siberian eagle-owl can be found in the western part of the mountains.
Until the 20th century, the Caspian tiger was found in the southern parts of the Altai mountains, where it reached Lake Zaisan and the Black Irtysh. Single individuals were also shot further north, for example close to Barnaul. Closely related to the Caspian tiger is the extant Amur tiger, which has the taxonomic name Panthera tigris altaica.
The wisent was present in the Altai mountains until the Middle Ages, perhaps even until the 18th century. Today, there is a small herd in a nursery in the Altai Republic.
Moor frogs are near bodies of water as high up as in the Altai mountains.

History

The Altai mountains have retained a remarkably stable climate, changing little since the last ice age. In addition the mix of mammals has remained largely the same, with a few exceptions such as extinct mammoths, making it one of the few places on earth to retain an ice age fauna.
The Altai mountains were home to the Denisovan branch of hominids who were contemporaries of Neanderthals and of Homo sapiens, descended from Hominids who reached Asia earlier than modern humans. The Denisova hominin, dated to 40,000 years ago, was discovered in the Denisova Cave of the Altai mountains in southern Siberia in 2008. Knowledge of the Denisovan humans derives primarily from DNA evidence and artifacts, as no complete skeletons have yet been recovered. DNA evidence has been unusually well preserved because of the low average temperature in the Denisova caves. Neanderthal bones and tools made by Homo sapiens have also been found in the Denisova Cave, making it the only place in the world where all three hominids are known to have lived.
A dog-like canid from 33,000 years ago was found in the Razboinichya Cave. DNA analysis published in 2013 affirmed that it was more closely related to modern dogs than to wolves.
File:Reconstruction of a Scythian, found in the kurgan Olon-Kurin-Gol 10, Altai Mountains, Mongolia.jpg|thumb|Reconstruction of a Saka Scythian, found in the kurgan Olon-Kurin-Gol 10 in Pazyryk, Altai Mountains, Mongolia
The Afanasievans are considered as the earliest herders of East Asia, who were instrumental in the establishment of the long tradition of pastoralism in Mongolia. The Afanasevan population was descended from people who migrated c. 3700–3300 BCE across the Eurasian Steppe from the pre-Yamnaya Repin culture of the Don-Volga region. In the Altai Mountains and to the southeast, Afanasievans seem to have coexisted with the early period of the Chemurchek culture for some time. The Afanasevo culture was replaced by the second wave of Indo-European migrations from the Andronovo culture during late Bronze Age and early Iron Age. Numerous Eastern Scythian remains have been found in an excellent state of preservation in the Altai mountains, with soft tissues such as skin and hair preserved.
The Altai Mountains have been identified as being the point of origin of a cultural enigma termed the Seima-Turbino Phenomenon which arose during the Bronze Age around the start of the 2nd millennium BC and led to a rapid and massive migration of peoples from the region into distant parts of Europe and Asia.
The area was part of the Xiongnu Empire, the First Turkic Khaganate, the Uyghur Empire, and the Yeniseian Kyrgyzs. It was during this time that the local population became fully Turkicized culturally and linguistically. There is increasing evidence for a partial continuity from the eastern Scythians to the Turkic-speakers of the Altai region.
Some historians believe that the Altai mountain region may have been the location where skiing was born, however this remains disputed. Evidence to support the claims includes several cave petroglyphs within the Altai Mountains in modern China that depict human figures on skis that are chasing after an ibex. According to a study published by the Australian Rock Art Research Association in 2016, this rock art was estimated to be from between 4,000 and 5,250 years ago, which consequently meant it may be just as old or possibly older than ancient skiing rock art and artefacts located in Scandinavia. However, dating petroglyphs accurately with current technology is very difficult. The oldest known text that describes skiing is from a Chinese text that dates to the Western Han Dynasty and refers to skiers in the Altai Mountains.