Altun Shan
🏔️ Overview
The Altun Shan, also widely known as the Altyn-Tagh, Altun Mountains, A’erjin Shan, or A-erh-chin Mountains, is a vast and exceptionally remote mountain range in northwestern China. Stretching across parts of Xinjiang, Qinghai, and Gansu, the mountains form one of the great geographic boundaries along the northern edge of the Tibetan Plateau.
The range separates the high plateau and its interior basins from the Tarim Basin and some of the driest landscapes of Central Asia. To the south and southwest lie the great Kunlun Mountains, while the Altun Shan transitions eastward toward the Qilian Shan.
This is a landscape of extraordinary contrasts. Snow-covered summits rise above cold deserts, gravel plains, saline lakes, permafrost, and high-altitude basins. Much of the region is extremely sparsely inhabited, and large areas remain among the least accessible mountain environments in China.
The name can create confusion because Altun Shan is also the name of an individual mountain, approximately 5,830 meters (19,127 feet) high, near the eastern part of the wider range. The range itself includes substantially higher mountains.
Even identifying the highest summit depends on how the geographic limits of the Altun Shan are defined. Some mountain databases include Ak Tag, or Sicha Xuefeng, at approximately 6,748 meters (22,139 feet) within the Altun Shan system. Other commonly used geographical references employ a narrower definition and identify Sulamutag Feng at 6,245 meters (20,489 feet) as the range’s highest point.
This difference is best understood as a classification issue rather than a simple measurement error.
⚡ Fast Facts
| Feature | Details |
|---|---|
| Continent | Asia |
| Country | China |
| Regions/Provinces | Xinjiang Uyghur Autonomous Region, Qinghai Province, and Gansu Province |
| Alternative Names | Altyn-Tagh, Altun Mountains, A’erjin Shan, A-erh-chin Mountains |
| Mountain System | Often associated with the Kunlun Mountains, although geographic classifications vary |
| Approximate Length | Roughly 700–800 km (435–500 mi), depending on the boundaries used |
| Highest Point — Broad Definition | Ak Tag / Sicha Xuefeng — approximately 6,748 m (22,139 ft) |
| Highest Point — Narrower Definition | Sulamutag Feng — approximately 6,245 m (20,489 ft) |
| Notable Individual Peak | Altun Shan — approximately 5,830 m (19,127 ft) |
| Neighboring Ranges | Kunlun Mountains and Qilian Mountains |
| Major Basins | Tarim Basin, Kumkol/Kumukuli Basin, and Qaidam Basin |
| Major Tectonic Feature | Altyn Tagh Fault |
| Environment | High-altitude desert, alpine desert, snowfields, glaciers, saline lakes, and endorheic basins |
| Major Protected Area | Altun Shan National Nature Reserve |
Because the geographic boundary between the Altun Shan and neighboring Kunlun mountain groups is interpreted differently by different mapping and topographic systems, published measurements of the range’s length and highest point are not completely uniform.
📍 Location
The Altun Shan occupies a strategic position along the northern margin of the Tibetan Plateau in western China.
Its western sections lie mainly within southeastern Xinjiang, while farther east the range approaches or follows portions of the boundaries between Xinjiang, Qinghai, and Gansu.
To the north lies the enormous Tarim Basin, which contains the Taklamakan Desert, one of the world’s great desert regions. To the south lie high plateau basins and mountain systems associated with the Kunlun and Tibetan Plateau.
The mountains help create a dramatic geographic transition from low, intensely arid desert basins to terrain standing thousands of meters higher.
In the west and southwest, the Altun Shan approaches the Kunlun system. Farther east, it connects geographically and tectonically with the Qilian Mountains.
This position makes the Altun Shan an important component of the vast network of mountain ranges surrounding the Tibetan Plateau.
The Tarim Basin
The Tarim Basin lies north of much of the Altun Shan.
It is one of the largest enclosed drainage basins in Central Asia and contains the Taklamakan Desert. The steep contrast between the high mountains and the desert basin is one of the defining geographic characteristics of the Altun Shan.
Streams flowing north from the mountains are generally limited by the extremely dry climate. Many disappear into desert environments rather than reaching the sea.
The Qaidam Basin
Farther east, the Altun Shan also borders the western side of the Qaidam Basin.
The Qaidam is a high, arid basin on the northeastern Tibetan Plateau characterized by salt flats, desert terrain, saline lakes, and surrounding mountains.
The Altun Shan therefore helps separate several of western China’s great interior basins.
📏 Highest Mountains of the Altun Shan
Determining the highest mountain of the Altun Shan is more complicated than it first appears because geographers do not always use identical boundaries for the range.
Under a broad topographic classification, several important high summits include:
| Mountain | Approximate Elevation |
|---|---|
| Ak Tag / Sicha Xuefeng | 6,748 m (22,139 ft) |
| Sulamutag Feng | 6,245 m (20,489 ft) |
| Yusupu Aleketag Shan / Aleke Tag | 6,065 m (19,898 ft) |
| Altun Shan | 5,830 m (19,127 ft) |
| Kogantag | 4,800 m (15,748 ft) |
Some geographic references exclude Ak Tag from a narrowly defined Altyn-Tagh range. Under that interpretation, Sulamutag Feng becomes the highest summit.
This is why both 6,748 meters and 6,245 meters can appear in credible descriptions of the range.
Sulamutag Feng
Sulamutag Feng is one of the most important mountains of the western Altun Shan.
It rises to approximately 6,245 meters (20,489 feet) and has roughly 2,028 meters (6,654 feet) of topographic prominence, qualifying it as an ultra-prominent mountain.
Its position deep within an exceptionally isolated region contributes to its relative obscurity compared with similarly high mountains elsewhere in Asia.
The Individual Altun Shan Peak
Adding to the naming confusion, there is also a specific summit named Altun Shan.
This mountain rises to approximately 5,830 meters (19,127 feet) near the eastern portion of the mountain system. It is a highly prominent summit in its own right, but it is not the highest mountain of the wider Altun Shan range.
Older descriptions sometimes mix measurements from this individual peak with measurements describing the entire range.
🪨 Geology
The Altun Shan occupies one of the most important tectonic regions in Asia.
Its modern landscape is closely associated with deformation along the northern margin of the Tibetan Plateau, where the effects of the continuing collision between the Indian and Eurasian plates extend far beyond the Himalayas.
One of the dominant geological structures is the Altyn Tagh Fault, a major left-lateral strike-slip fault.
The fault extends for roughly 1,600 kilometers across the northern Tibetan Plateau region, considerably farther than the mountain range itself. It links deformation around the western Kunlun with fault and mountain systems farther east.
During the Cenozoic Era, continuing continental collision compressed, thickened, uplifted, and displaced large sections of crust throughout Tibet and western China.
The Altun Shan Fault became an important boundary along which crustal blocks moved laterally as the Tibetan Plateau developed.
Connection With the Qilian Mountains
The eastern Altun Shan is particularly important because movement associated with the Altyn Tagh Fault interacts with deformation in the Qilian Shan.
Rather than simply continuing indefinitely eastward as one fault, part of the tectonic movement is transferred into faulting, folding, crustal shortening, and mountain building within the Qilian region.
This makes the Altun Shan–Qilian region an important natural laboratory for scientists studying how enormous continental plateaus expand and deform.
A Complex Mountain-Building History
The rocks of the Altun Shan do not all belong to a single geological event.
Western China has experienced repeated episodes of continental collision, ocean closure, faulting, uplift, erosion, and sedimentation over hundreds of millions of years.
The modern Altun Shan landscape represents the combined result of these ancient geological foundations and much younger Cenozoic deformation associated with the development of the Tibetan Plateau.
💧 Lakes and Interior Drainage Basins
One of the most interesting features of the Altun Shan is the presence of endorheic basins.
An endorheic basin has no natural drainage route to the ocean. Water flowing into such a basin eventually evaporates, infiltrates the ground, or accumulates in lakes.
These closed drainage systems are especially common in dry continental interiors.
Kumkol or Kumukuli Basin
Between parts of the Altun Shan and the main Kunlun system lies the high Kumkol Basin, also written Kumukuli or Kumkuli.
This extremely isolated landscape contains saline lakes surrounded by high desert and mountain terrain.
Two especially notable lakes are Lake Ayakkum and Lake Aqqikkol.
Because evaporation greatly exceeds precipitation, dissolved minerals accumulate in many of the region’s lakes, producing saline conditions.
The lakes, wetlands, seasonal streams, desert plains, and surrounding mountains also create important wildlife habitat in an otherwise exceptionally harsh environment.
🌿 Flora and Fauna
The Altun Shan lies within one of Earth’s most extreme high-altitude ecosystems.
Large portions of the surrounding region belong to the North Tibetan Plateau–Kunlun Mountains Alpine Desert ecosystem, where cold, wind, low precipitation, saline soils, and high elevation severely limit plant growth.
Vegetation can be extremely sparse. Hardy sedges, small flowering plants, cushion plants, and specialized alpine species survive by remaining close to the ground and completing their growing cycles during the short summer season.
At the highest elevations, vegetation eventually gives way to barren rock, permanent snowfields, and glaciers.
Despite these severe conditions, the greater Altun Shan region supports some of Asia’s most remarkable large mammals.
Wildlife may include:
- Tibetan antelope, or chiru
- Kiang, also called Tibetan wild ass
- Wild yak
- Snow leopard
- Gray wolf
- Brown bear
- Plateau pikas and other small mammals
These animals possess remarkable adaptations to cold, thin air, limited vegetation, and enormous distances between reliable water and grazing areas.
Altun Shan National Nature Reserve
The Altun Shan National Nature Reserve protects a substantial portion of the remote wilderness of southeastern Xinjiang.
The reserve helps form part of a much larger network of protected high-altitude landscapes across the northern Tibetan Plateau.
Together with neighboring protected regions, these areas provide habitat and migration corridors for Tibetan Plateau wildlife, particularly large grazing mammals that move across enormous distances.
The conservation significance of this connected landscape is particularly important for Tibetan antelope, wild yak, and other animals that require large territories relatively free from intensive development.
🌤️ Climate
The Altun Shan has an exceptionally dry, cold continental climate.
Its location deep within the Asian interior places it far from major oceanic moisture sources. Surrounding mountain systems also restrict the amount of precipitation that reaches the region.
Lower elevations are dominated by cold desert conditions, while the highest mountains experience severe alpine climates.
Typical environmental characteristics include:
- Very low annual precipitation
- Strong winds
- Large differences between daytime and nighttime temperatures
- Long, intensely cold winters
- Short summers
- Intense solar radiation at high elevation
- Permafrost in high plateau areas
- Permanent or long-lasting snow on the highest mountains
The dryness means that the snowline can occur at unusually high elevations compared with wetter mountain ranges.
Even where mountains exceed 5,000 meters, extensive vegetation should not be expected. Much of the scenery is dominated by bare rock, gravel, snow, ice, salt flats, and high desert.
🥾 Hiking, Climbing & Exploration
The Altun Shan should not be viewed as a conventional hiking destination.
Unlike famous mountain regions with developed trail networks, huts, visitor centers, road access, and rescue infrastructure, much of the Altun Shan remains extraordinarily remote.
Distances are enormous, settlements are scarce, weather can deteriorate rapidly, and elevations are high enough for altitude illness to become a serious concern.
Parts of the region are also environmentally protected or subject to access controls.
Expeditions into the interior therefore require far more planning than an ordinary mountain hike.
Potential hazards include:
- Extreme remoteness
- Altitude sickness
- Severe cold
- Strong winds
- Limited water sources
- Unmaintained or nonexistent roads
- Difficult communications
- Snow and glacier travel
- Lack of nearby emergency assistance
Many of the range’s highest mountains receive little international mountaineering attention compared with the Himalayas, Karakoram, Tian Shan, or better-known sections of the Kunlun.
As a result, climbing histories for some remote Altun Shan summits remain sparse.
🏔️ Field Guide Tip: Treat the Altun Shan as an expedition environment rather than an ordinary trekking destination. Maps alone may not accurately reflect road conditions, access restrictions, water availability, or the enormous distances between settlements. Anyone planning travel in the region should verify current access requirements and arrange experienced local logistical support.
🌤️ Best Time to Visit
Where travel is permitted, the warmer months generally offer the most practical conditions for exploration.
Late spring through early autumn provides longer daylight and somewhat less severe temperatures than winter, but even summer conditions can be cold at high elevations.
Weather varies substantially according to altitude and location.
Winter brings extreme cold and can make already difficult transportation substantially more hazardous.
Because large sections of the Altun Shan lie at very high elevations, visitors must also allow adequate time for acclimatization regardless of season.
🧭 Nearby Mountains & Geographic Features
The Altun Shan is surrounded by some of Central Asia’s most impressive mountain and desert landscapes.
Kunlun Mountains
The Kunlun Mountains extend along much of the northern side of the Tibetan Plateau.
Definitions of the two systems overlap in some geographical classifications, and the Altun Shan is sometimes described as a northern or northeastern component of the broader Kunlun mountain system.
See also the Highest Peaks of the Kunlun Mountains.
Qilian Shan
East of the Altun Shan rise the Qilian Shan, another enormous mountain system along the northern edge of the Tibetan Plateau.
The transition between the Altun and Qilian systems is especially important geologically because tectonic movement along the Altyn Tagh Fault is partly transferred into deformation within the Qilian Mountains.
Kangze’gyai
Kangze’gyai is generally recognized as the highest mountain of the Qilian Mountains.
Its nearest higher terrain lies toward the Altun Shan region, illustrating how the two great mountain systems are geographically connected.
Yuxu Shan
Yuxu Shan is another high mountain of western China associated with the broader Kunlun region.
Tarim Basin
North of the mountains stretches the Tarim Basin and Taklamakan Desert, producing one of the sharpest high-mountain-to-desert transitions in Asia.
Tibetan Plateau
South of the range lies the immense Tibetan Plateau, the world’s highest and largest major plateau.
The Altun Shan forms part of its northern mountainous boundary.
🛤️ The Altun Shan and the Silk Road
The Altun Shan also played an important role in the geography of the historic Silk Road.
Major trade routes crossing Central Asia generally avoided the highest interior mountains and instead followed desert margins, river valleys, oases, and passes.
Routes along the northern side of the Altun Shan connected the Tarim Basin with the Hexi Corridor and regions farther east.
The mountains, together with the Qilian Shan, formed a formidable southern wall beside these travel corridors.
This geography helped channel trade and migration through relatively narrow passages between mountains and desert.
Near the eastern end of the range, routes approaching the Hexi Corridor provided access toward Dunhuang and the interior of China.
For ancient travelers, the Altun Shan was therefore both a barrier and an important geographic guide.
💡 Fun Facts
- Altun Shan has several names. Altyn-Tagh, Altun Mountains, A’erjin Shan, and A-erh-chin Mountains all refer to the same general mountain system.
- The name is associated with “Gold Mountain.” Turkic forms of the name relate to “gold,” while the Chinese expression Jin Shan likewise means “Gold Mountain.”
- Altun Shan is both a range and a mountain. The individual Altun Shan summit reaches approximately 5,830 meters, while the wider mountain system contains considerably higher peaks.
- The highest point depends on how the range is defined. Broad topographic classifications place 6,748-meter Ak Tag within the Altun Shan, while narrower geographical descriptions identify 6,245-meter Sulamutag Feng as the highest summit.
- The region contains salt lakes at extraordinary elevations. Closed drainage and extreme aridity have created several saline lake systems within high interior basins.
- The mountains border both desert and plateau environments. The Altun Shan separates parts of the Tarim Basin from the high Tibetan Plateau.
- One of Asia’s great faults runs through the region. The Altyn Tagh Fault is a major strike-slip structure involved in the tectonic deformation of the northern Tibetan Plateau.
- Large wild mammals still roam the region. Tibetan antelope, kiang, wild yak, wolves, bears, and snow leopards survive across the wider high-altitude landscape.
❓ Frequently Asked Questions
Where is Altun Shan?
The Altun Shan is located in northwestern China. It extends through parts of Xinjiang, Qinghai, and Gansu along the northern margin of the Tibetan Plateau.
Is Altun Shan the same as Altyn-Tagh?
Yes. Altun Shan, Altyn-Tagh, Altun Mountains, and A’erjin Shan are different names or transliterations for the same general mountain range.
What is the highest mountain in the Altun Shan?
The answer depends on the boundaries used.
Broad topographic classifications include Ak Tag, or Sicha Xuefeng, at approximately 6,748 meters within the Altun Shan.
Some narrower geographical descriptions instead identify Sulamutag Feng, at approximately 6,245 meters, as the range’s highest point.
How high is Altun Shan?
There is also an individual mountain named Altun Shan that rises to approximately 5,830 meters (19,127 feet).
This summit should not be confused with the entire Altun Shan mountain range.
How long is the Altun Shan?
Published figures vary because the boundaries of the range are interpreted differently. A reasonable general estimate is approximately 700 to 800 kilometers, or roughly 435 to 500 miles.
Is the Altun Shan part of the Kunlun Mountains?
It depends on the classification system.
Some geographers treat the Altun Shan as a northern or northeastern branch of the broader Kunlun system. Others describe it as a separate mountain range that diverges from the Kunlun and continues northeast toward the Qilian Shan.
What does Altun Shan mean?
The name is generally associated with the idea of a “Gold Mountain.” “Altun” or “Altyn” is derived from a Turkic word for gold, while the corresponding Chinese term Jin Shan also means Gold Mountain.
What is the Altyn Tagh Fault?
The Altyn Tagh Fault is a major left-lateral strike-slip fault running along the northern Tibetan Plateau region.
It has played an important role in accommodating crustal deformation associated with the collision of India and Eurasia and the growth of the Tibetan Plateau.
Are there glaciers in the Altun Shan?
Yes. Permanent snowfields and glaciers occur on the highest mountains, particularly in the western and southwestern sections of the range.
However, the extremely dry climate means glacier distribution is much more limited than might be expected solely from the mountains’ elevations.
What animals live in the Altun Shan?
The greater region supports Tibetan antelope, kiang, wild yak, wolves, brown bears, snow leopards, pikas, and other animals adapted to high-altitude desert and plateau environments.
Can you hike in the Altun Shan?
The Altun Shan is not a conventional recreational hiking region.
Large areas are extremely remote, environmentally sensitive, and difficult to access. Anyone considering an expedition should research current access rules, transportation, weather, altitude, communications, and emergency logistics well in advance.
🔗 Related Articles
- Kunlun Mountains
- Highest Peaks of the Kunlun Mountains
- Qilian Shan
- Kangze’gyai
- Yuxu Shan
- Mountains in China
- Highest Mountains in China
- Mountains of Tibet
- The World’s Top 100 Mountain Ranges
- Mountain Ranges
📚 Sources
- Encyclopaedia Britannica — Altun Mountains — Geographic reference for the Altun/A-erh-chin Mountains and their position in northwestern China.
- Wikipedia — Altyn-Tagh — Cross-reference for alternative names, geographic extent, basins, Silk Road geography, and the narrower interpretation listing Sulamutag Feng as the highest point.
- Peakbagger — Ultras of Central Asia — Topographic cross-check for major Altun Shan summits, including Ak Tag, Sulamutag Feng, Altun Shan, and Aleke Tag.
- Frontiers in Earth Science — Evolution of Kinematic Transformation from the Altyn Tagh Fault to the Qilian Shan — Peer-reviewed research covering the Altyn Tagh Fault, Tibetan Plateau deformation, and tectonic connections with the Qilian Shan.
- One Earth — North Tibetan Plateau–Kunlun Mountains Alpine Desert — Ecological reference for the high-altitude desert environment, vegetation, Tibetan antelope, wild yak, kiang, snow leopard, and the connected protected landscape that includes Altun Shan Nature Reserve.
