The Longest Mountain Ranges in the World

View of the Himalayas on a foggy night – Mt Everest visible through the fog with dramatic and beautiful lighting | World-Wide-Photography

🏔️ Overview

Mountain ranges are among the largest and most influential landforms on Earth. They shape continental boundaries, redirect winds, feed major rivers, create habitats, and influence where people live.

However, identifying the world’s “largest” mountain ranges is not as straightforward as it may initially appear. A mountain range can be considered large because of its length, width, area, elevation, or number of peaks.

The Himalayas contain the world’s highest mountains, but they are not the longest range. The Andes are the longest continental mountain chain, while an enormous underwater system known as the Mid-Ocean Ridge is the longest mountain range of any kind.

For a clear comparison, this guide ranks the world’s longest major land-based mountain ranges by their approximate end-to-end length. Because the boundaries of ranges and mountain systems are not always universally defined, all measurements should be treated as approximate.

⚡ Fast Facts

Fact	Answer
Longest mountain range on Earth	Mid-Ocean Ridge
Approximate length of the Mid-Ocean Ridge	65,000 km / 40,389 mi
Longest mountain range on land	Andes
Approximate length of the Andes	7,000 km / 4,350 mi
Longest major range in North America	Rocky Mountains
Longest major range entirely within one country	Great Dividing Range
Highest mountain range	Himalayas
Highest mountain in the listed ranges	Mount Everest — 8,848.86 m / 29,031.7 ft
Main measurement used in this guide	Approximate end-to-end length
Important distinction	Mountain ranges, systems, chains, and orogenic belts are not always equivalent

📏 What Does “Largest Mountain Range” Mean?

The word “largest” can describe several different characteristics.

Length measures how far a range extends from one end to the other. This is the criterion used in this article.

Width measures the distance across a range. A shorter but exceptionally broad mountain system may cover more land than a longer, narrower chain.

Area refers to the total surface occupied by mountains, plateaus, valleys, and associated uplands.

Elevation measures height above sea level. By this standard, the Himalayas are the greatest mountain range because they contain Mount Everest and most of the world’s 8,000-meter peaks.

Relief measures the vertical difference between mountain summits and the surrounding terrain. A mountain does not need an exceptionally high elevation to possess dramatic relief.

The terminology also matters. A single named mountain range is not necessarily equivalent to a cordillera, mountain system, or broad geological belt. These differences are explained further in Mountain Range vs. Mountain System vs. Massif.

🏔️ Field Guide Tip: Before comparing mountain-range lengths, check whether each source is measuring one named range, an entire cordillera, or a broader mountain-building belt. These categories are not directly interchangeable.

🌍 The Longest Mountain Ranges on Land

Rank	Mountain Range	Approximate Length	Main Region	Highest Mountain
1	Andes	7,000 km / 4,350 mi	South America	Aconcagua — 6,961 m
2	Rocky Mountains	4,800–5,000 km / 3,000–3,100 mi	North America	Mount Elbert — 4,401 m
3	Great Dividing Range	About 3,500 km / 2,175 mi	Australia	Mount Kosciuszko — 2,228 m
4	Transantarctic Mountains	About 3,500 km / 2,175 mi	Antarctica	Mount Kirkpatrick — 4,528 m
5	Appalachian Mountains	About 3,200–3,300 km / 2,000–2,050 mi	North America	Mount Mitchell — 2,037 m
6	Chilean Coast Range	About 3,100 km / 1,925 mi	South America	Cerro Vicuña Mackenna — 3,114 m
7	Kunlun Mountains	More than 3,000 km / 1,865 mi	Asia	Liushi Shan — 7,167 m
8	Tian Shan	About 2,500 km / 1,550 mi	Central Asia	Jengish Chokusu — 7,439 m
9	Ural Mountains	About 2,500 km / 1,550 mi	Europe and Asia	Mount Narodnaya — 1,894 m
10	Atlas Mountains	About 2,500 km / 1,550 mi	North Africa	Toubkal — 4,167 m
11	Himalayas	About 2,400 km / 1,500 mi	Asia	Mount Everest — 8,848.86 m

The order should not be interpreted as an exact scientific league table. Measurements vary depending on which foothills, connecting ridges, plateaus, and subranges are included.

1. The Andes

The Andes form the longest continental mountain range in the world. They extend for approximately 7,000 kilometers along the western edge of South America, passing through Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina.

The range consists of numerous parallel cordilleras, volcanic chains, high plateaus, and deeply carved valleys. Its greatest summit is Aconcagua in Argentina, which rises to approximately 6,961 meters and is the highest mountain outside Asia.

The Andes formed primarily through the subduction of oceanic plates beneath the South American Plate. This tectonic process remains active, producing earthquakes, volcanoes, crustal uplift, and continued mountain building.

Climates vary dramatically along the range. The northern Andes contain tropical cloud forests and páramo, the Central Andes include the high Altiplano and exceptionally dry Atacama region, and the southern Andes descend into the glaciers, forests, and fjords of Patagonia.

The range also contains the headwaters of major rivers, numerous active volcanoes, valuable mineral deposits, and some of the most biologically diverse mountain environments on Earth.

2. The Rocky Mountains

The Rocky Mountains form one of the defining geographical features of western North America. Depending on the boundaries used, the range extends approximately 4,800 to slightly more than 5,000 kilometers from western Canada to the southwestern United States.

More than 100 individually named ranges are associated with the Rocky Mountain belt. These include the Canadian Rockies, Northern Rockies, Middle Rockies, and Southern Rockies.

Mount Elbert in Colorado is the highest summit, reaching approximately 4,401 meters. Many of the range’s other highest mountains are concentrated in Colorado, including numerous summits exceeding 14,000 feet.

The Rockies form part of the much larger North American Cordillera, which also includes the Coast Mountains, Alaska Range, Cascade Range, Sierra Nevada, and other western mountain systems. Because the cordillera contains numerous distinct ranges, it is not treated as one mountain range in this ranking.

The Rockies are also a major continental watershed. Rivers originating in the range eventually flow toward the Pacific Ocean, Atlantic Ocean, Gulf of Mexico, Arctic Ocean, and interior drainage basins.

3. The Great Dividing Range

The Great Dividing Range extends for approximately 3,500 kilometers along eastern Australia. It is the country’s longest and most extensive mountain and upland system.

The range begins near the Cape York Peninsula in Queensland, continues through New South Wales, and extends into Victoria. It is not a single unbroken line of sharp mountains. Instead, it includes plateaus, escarpments, rolling uplands, highlands, and numerous separately named ranges.

Mount Kosciuszko, at 2,228 meters, is the highest summit in the Great Dividing Range and the highest mountain on the Australian mainland.

The range receives its name from its role as a major watershed. Rivers on its eastern side generally flow toward the Pacific Ocean, while many rivers on its western side drain inland or enter the Murray–Darling river system.

Because the Great Dividing Range lies entirely within Australia, it is commonly described as the world’s longest major land-based mountain chain contained within a single country.

4. The Transantarctic Mountains

The Transantarctic Mountains stretch approximately 3,500 kilometers across Antarctica. They form a vast natural division between East Antarctica and West Antarctica.

The system extends from northern Victoria Land across the continent toward the Weddell Sea region. Much of it is surrounded or partly buried by ice, but high summits, exposed ridges, and ice-free valleys rise above the Antarctic Ice Sheet.

Mount Kirkpatrick is the highest mountain in the range at approximately 4,528 meters. It stands in the Queen Alexandra Range overlooking the Ross Ice Shelf.

The Transantarctic Mountains include numerous named subdivisions, such as the Admiralty Mountains, Prince Albert Mountains, Queen Alexandra Range, Queen Maud Mountains, and Pensacola Mountains.

The range is scientifically important because its exposed rocks preserve evidence of Antarctica’s geological history. Fossils discovered there show that the continent once supported forests, rivers, and terrestrial animals before becoming the frozen environment seen today.

5. The Appalachian Mountains

The Appalachian Mountains extend for approximately 3,200 to 3,300 kilometers through eastern North America. They run from Newfoundland and Labrador in Canada toward the southern United States, eventually reaching central Alabama.

The Appalachians are considerably older than the Rockies, Andes, or Himalayas. Their geological history began hundreds of millions of years ago as ancient continents collided during the formation of Pangaea.

Those early mountains may once have rivaled some modern high ranges, but immense periods of erosion have reduced them to rounded ridges, forested summits, plateaus, and deeply weathered valleys.

Mount Mitchell in North Carolina is the highest summit at 2,037 meters. It is also the highest point in the United States east of the Mississippi River.

The Appalachians are particularly important for their temperate forests, biological diversity, coal-bearing geological formations, cultural history, and extensive recreation network. The Appalachian Trail follows part of the mountain system for more than 3,500 kilometers, although the hiking trail is longer than the direct geographical length of the range.

6. The Chilean Coast Range

The Chilean Coast Range, or Cordillera de la Costa, runs for approximately 3,100 kilometers parallel to the Pacific coast of Chile. It stretches from the far north of the country toward the Taitao Peninsula in northern Patagonia.

The range is separated from the main Andes by Chile’s Central Valley and other intervening lowlands, although the two systems meet or approach one another in several places.

Cerro Vicuña Mackenna is generally identified as its highest summit, reaching approximately 3,114 meters in northern Chile.

The coastal mountains strongly influence regional climate. Their western slopes intercept moisture from the Pacific, while their eastern sides can lie within a rain shadow. In the extremely dry north, portions of the range rise directly beside the Atacama Desert.

Farther south, the range becomes lower and more heavily vegetated. Some of its southern sections are partly submerged, forming islands and peninsulas along Chile’s deeply indented coastline.

7. The Kunlun Mountains

The Kunlun Mountains are among Asia’s longest mountain chains, extending for more than 3,000 kilometers across western China.

They form much of the northern boundary of the Tibetan Plateau and rise south of the Tarim Basin and Taklamakan Desert. The system extends through or borders parts of Xinjiang, Tibet, and Qinghai.

Liushi Shan, also known as the Kunlun Goddess, is generally recognized as the range’s highest mountain at approximately 7,167 meters.

The exact boundaries of the Kunlun Mountains vary considerably among maps and geographical sources. Some definitions include neighboring ranges that other authorities classify separately. This uncertainty is one reason its total length is normally presented as an approximation.

The mountains are remote, dry, and sparsely populated. Nevertheless, they are important to the geography of western China, regional drainage systems, high-altitude ecosystems, glaciation, and Chinese mythology.

8. The Tian Shan

The Tian Shan, whose name means “Celestial Mountains,” forms a great system of ranges across Central Asia. It extends for approximately 2,500 kilometers through Kyrgyzstan, China, Kazakhstan, and Uzbekistan.

Jengish Chokusu, also called Victory Peak or Pik Pobedy, is the highest summit at 7,439 meters. Nearby Khan Tengri is slightly lower but is one of the region’s most recognizable and celebrated mountains.

The Tian Shan contains high plateaus, extensive glaciers, alpine lakes, steep valleys, forests, and dry interior basins. Its snowfields and glaciers supply water to heavily populated and agriculturally important areas of Central Asia.

The range also played an important role in the history of the Silk Road. Routes crossed its foothills and mountain passes, connecting communities and trading centers across Eurasia.

9. The Ural Mountains

The Ural Mountains extend approximately 2,500 kilometers from the Arctic coast of Russia toward northwestern Kazakhstan.

They are conventionally regarded as part of the boundary between Europe and Asia, although the division between the two continents is cultural and geographical rather than a separation between two completely independent tectonic plates.

Mount Narodnaya is the highest summit at approximately 1,894 meters. Despite their great length, the Urals are generally much lower than the Himalayas, Andes, Rockies, or Tian Shan.

The range is geologically ancient and has been heavily eroded. Its northern sections cross Arctic tundra and taiga, while the southern sections pass through forests, grasslands, and semi-arid environments.

The Urals contain extensive deposits of iron, copper, nickel, coal, platinum, gemstones, and other minerals. These resources helped the region become one of Russia’s most important industrial areas.

10. The Atlas Mountains

The Atlas Mountains extend approximately 2,500 kilometers across Morocco, Algeria, and Tunisia in northwestern Africa.

The system includes several major subdivisions, including the High Atlas, Middle Atlas, Anti-Atlas, Tell Atlas, and Saharan Atlas. These ranges differ in geology, elevation, climate, and vegetation.

Toubkal in Morocco is the highest summit at 4,167 meters. It is also the highest mountain in North Africa.

The Atlas Mountains separate the Mediterranean and Atlantic regions from the Sahara. Their slopes intercept moisture, supporting forests, farmland, rivers, and settlements that contrast sharply with the deserts immediately to the south.

The mountains have also supported Amazigh communities for thousands of years and remain an important center of agriculture, pastoralism, trade, and cultural heritage.

11. The Himalayas

Although the Himalayas are the highest mountain range on Earth, their approximate length of 2,400 kilometers places them below several lower mountain chains when measured from end to end.

The Himalayas form a great arc between the Tibetan Plateau and the plains of the Indian subcontinent. They extend through or along parts of Pakistan, India, Nepal, China, and Bhutan.

Mount Everest, at 8,848.86 meters, is the highest mountain above sea level. The range also contains other giant summits, including Kangchenjunga, Lhotse, Makalu, Cho Oyu, Dhaulagiri, Manaslu, Nanga Parbat, and Annapurna I.

The Himalayas formed through the continuing collision of the Indian and Eurasian tectonic plates. Because that collision remains active, the region experiences ongoing uplift, earthquakes, landslides, and rapid erosion.

The mountains contain thousands of glaciers and feed major Asian river systems, including the Indus, Ganges, and Brahmaputra. Hundreds of millions of people ultimately depend on water originating in the Himalayas and neighboring highlands.

🌊 The World’s Longest Mountain Range Is Underwater

The longest mountain range on Earth is not found on any continent. It is the Mid-Ocean Ridge, a connected system of underwater volcanic ridges extending for approximately 65,000 kilometers through the world’s oceans.

About 90 percent of the system lies beneath the ocean surface. Portions rise above sea level in places such as Iceland, but most can be observed only through bathymetric mapping, scientific instruments, and deep-sea exploration.

The Mid-Ocean Ridge forms where tectonic plates move apart. Magma rises from beneath Earth’s crust, cools, and produces new oceanic crust through a process known as seafloor spreading.

Rather than being one simple ridge, it is a connected global network that includes the Mid-Atlantic Ridge, East Pacific Rise, Southwest Indian Ridge, and other submarine features.

The Andes therefore hold the title of longest mountain range on land, while the Mid-Ocean Ridge is the longest range overall.

🧭 Why Some Longer Features Are Not Included

Several enormous geographical features are longer than some of the ranges in the main table, but they are not individual mountain ranges.

American Cordillera

The American Cordillera stretches along the western sides of North and South America. It includes the Andes, Rocky Mountains, Alaska Range, Coast Mountains, Cascades, Sierra Nevada, and numerous other ranges.

Because it is an interconnected system of many mountain ranges rather than one range, it is normally treated separately.

North American Cordillera

The North American Cordillera includes most of the major mountain systems of western Canada, the United States, Mexico, and parts of Central America. The Rockies are one major component of this broader region.

Alpine-Himalayan Belt

The Alpine-Himalayan orogenic belt extends from Southeast Asia through the Himalayas, Iranian Plateau, Caucasus, Anatolia, Alps, and surrounding regions. It represents an enormous zone of mountain building created by the collision of several tectonic plates.

It contains many separate ranges and cannot accurately be treated as one continuous mountain range.

Southern Great Escarpment

The Southern Great Escarpment follows the elevated rim of southern Africa’s interior plateau for thousands of kilometers. Sections of it include spectacular mountains, particularly the Drakensberg.

However, an escarpment is a long, steep slope separating areas of different elevation. It is not necessarily the same geological or geographical feature as a conventional mountain range, so it has not been included in the principal ranking.

🌿 Why Long Mountain Ranges Matter

The world’s longest mountain ranges affect landscapes far beyond their immediate slopes.

They force air to rise, cool, and release precipitation, producing wet windward environments and dry rain shadows. The Andes contribute to the aridity of the Atacama Desert, while the Himalayas influence the Asian monsoon and help limit the movement of cold Central Asian air toward the Indian subcontinent.

Mountain snowfields, glaciers, wetlands, and lakes store water and release it into rivers. The Himalayas, Rockies, Andes, Tian Shan, and Great Dividing Range all contain important watersheds supporting cities, agriculture, hydroelectric power, and natural ecosystems.

Long mountain chains also create numerous climate and elevation zones. This encourages biodiversity by isolating populations and producing habitats ranging from subtropical forests to alpine tundra and permanent ice.

For people, mountain ranges have acted as boundaries, transportation barriers, sacred landscapes, mineral regions, centers of agriculture, and sources of timber and freshwater. Modern roads and tunnels may cross them, but mountains continue to influence national borders, settlement patterns, languages, and cultures.

💡 Fun Facts

The Mid-Ocean Ridge is more than nine times longer than the Andes.
The Andes pass through seven South American countries.
The Great Dividing Range is the longest major mountain chain located entirely within one country.
The Transantarctic Mountains divide East Antarctica from West Antarctica.
The Appalachians are much older than the Rockies and Himalayas.
The Chilean Coast Range runs parallel to the Andes for much of Chile.
The Ural Mountains form part of the conventional boundary between Europe and Asia.
The Himalayas are the highest range but are only about one-third as long as the Andes.
Mount Everest is the highest summit above sea level, while Aconcagua is the highest mountain outside Asia.
The boundaries of the Kunlun Mountains vary considerably between geographical sources.

❓ Frequently Asked Questions

What is the longest mountain range in the world?

The Mid-Ocean Ridge is the world’s longest mountain range. This underwater system extends for approximately 65,000 kilometers through the global oceans.

What is the longest mountain range on land?

The Andes are the longest mountain range on land. They extend approximately 7,000 kilometers along western South America.

Are the Andes longer than the Rocky Mountains?

Yes. The Andes are approximately 7,000 kilometers long, while the Rocky Mountains extend roughly 4,800 to 5,000 kilometers.

Why are the Himalayas not the longest mountain range?

The Himalayas contain the world’s highest summits, but they extend for only about 2,400 kilometers. Height and length are separate measurements.

Is the American Cordillera longer than the Andes?

Yes, but the American Cordillera is a vast mountain system containing numerous separate ranges, including the Andes and Rockies. It is not normally classified as a single mountain range.

Which is the longest mountain range contained within one country?

The Great Dividing Range is generally considered the longest major land-based mountain chain located entirely within one country. It extends approximately 3,500 kilometers through eastern Australia.

How are mountain ranges measured?

Geographers generally estimate the distance between the accepted endpoints of a range. Results vary because researchers may use different boundaries or decide differently about whether foothills, plateaus, gaps, and connecting ranges should be included.

What is the difference between the longest and highest mountain ranges?

The longest range covers the greatest end-to-end distance. The highest range contains the mountains with the greatest elevations. The Andes are the longest continental range, while the Himalayas are the highest.

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