Mountain Ranges & Plateaus of the World

Why This Chapter Matters

SSC and RRB exams squeeze 2 to 3 questions out of world mountains and plateaus almost every single year, and the pattern repeats so often that you can predict the wording: "which mountain range separates X from Y", "the Andes run along which coast", "the Deccan Plateau is an example of which type of plateau". Easy marks if you have the ranges pinned to continents and countries. Lost marks if you don't.

The single biggest mistake aspirants make here is treating "mountain range" and "plateau" as the same kind of geography fact and mixing up which is which. A range is a chain of peaks, tall and narrow, born from rock crashing into rock. A plateau is a raised flat table of land, wide and level on top. Students who blur this distinction lose marks on questions like "the Tibetan Plateau is bordered by which range" because they cannot picture the plateau sitting like a tray next to the mountain wall around it. Fix that picture in your head first, and the rest of this chapter falls into place fast.

1. How Mountains Are Born — Three Types You Must Know

You do not need volcanology-level detail for these exams, but you must know the three formation categories because questions directly ask "which type of mountain is the Himalayas" or "the Aravallis are an example of which mountain type".

Fold mountains form when two tectonic plates push into each other and the crust between them crumples upward, like a tablecloth bunching up when you push both ends toward the middle. The Himalayas, Alps, Andes, Rockies, and Urals are all fold mountains, and they are geologically young, which is why their peaks are sharp and still rising slowly.

Block mountains (also called fault-block mountains) form when a chunk of crust gets pushed straight up or slips down along a fault line, leaving steep, wall-like sides. The Vosges and Black Forest in Europe and the Sierra Nevada in the USA are classic examples.

Volcanic mountains build up from repeated lava and ash eruptions piling on top of each other. Mount Kilimanjaro, Mount Fuji, and much of the Andes' volcanic peaks fall here.

Exam trap: Do not confuse fold mountains with block mountains just because both sound like "crust movement". Fold mountains bend and wrinkle upward under compression; block mountains break along a fault line and rise as a rigid slab. If a question describes steep, straight cliff-like sides, it wants "block mountain," not "fold mountain."

2. Asia's Mountain Ranges

Asia carries the tallest mountains on Earth, and this sub-topic alone is worth memorising range by range.

The Himalayas stretch about 2,400 km across five countries: India, Nepal, Bhutan, China, and Pakistan. They hold Mount Everest (8,849 m, on the Nepal-China border) and act as the climate wall that blocks cold Central Asian winds from reaching the Indian subcontinent, which is why North India stays warmer in winter than places at similar latitude in Central Asia. Think of the Himalayas as a giant security guard standing between Siberia's cold and India's plains.

The Karakoram Range, in the India-Pakistan-China border zone, holds K2 (8,611 m), the world's second-highest peak, and the Siachen Glacier, the world's highest militarised zone.

The Hindu Kush runs through Afghanistan and Pakistan, historically the gateway invaders used to enter the Indian subcontinent from Central Asia.

The Ural Mountains run north-south through Russia and form the conventional boundary between Europe and Asia — this exact fact is a favourite one-liner in exams. They are old, worn-down fold mountains, much lower and gentler than the Himalayas.

The Altai Mountains span Russia, Mongolia, China, and Kazakhstan, and the Tien Shan ("Celestial Mountains") stretch across Central Asia through Kyrgyzstan and China.

Memory hook: For the four non-Himalayan Asian ranges, remember "UHKA" — Urals divide continents, Hindu Kush was the invaders' door, Karakoram holds K2, Altai touches four countries. Say it as "You Hurt K, Ate it" if that sticks better for you.

3. Europe's Mountain Ranges

The Alps are Europe's showpiece fold mountain range, running through France, Switzerland, Italy, Austria, and Germany. Its highest peak, Mont Blanc (4,808 m), sits on the France-Italy border and is the highest peak in Western Europe.

The Pyrenees form the natural wall between Spain and France, and the tiny country of Andorra sits tucked inside this range — a fact SSC loves to test alongside "landlocked countries" questions.

The Carpathian Mountains curve through Central and Eastern Europe, covering parts of Romania, Slovakia, Poland, and Ukraine, while the Apennines run down the spine of Italy like a backbone, giving the Italian peninsula its characteristic boot shape.

The Ural Mountains, already covered above, do double duty as both an Asian range fact and a Europe boundary fact.

Exam trap: Students often write "the Alps separate Europe from Asia." That job belongs to the Urals, not the Alps. The Alps are entirely inside Europe and separate countries from each other, not continents.

4. Africa's Mountain Ranges

The Atlas Mountains run along Africa's northwest edge through Morocco, Algeria, and Tunisia, separating the Mediterranean coastline from the Sahara Desert. Picture them as a wall holding the desert back from the sea.

The Drakensberg Range runs along South Africa's eastern edge, and Mount Kilimanjaro in Tanzania, Africa's highest peak at 5,895 m, is a dormant volcanic mountain, not part of a range at all — it stands alone, which is exactly why exams like asking about it as an "isolated peak."

Mount Kenya, Africa's second-highest peak, sits in Kenya and is also volcanic in origin.

5. The Americas' Mountain Ranges

The Andes form the longest continental mountain range in the world, running roughly 7,000 km down the west coast of South America through Chile, Argentina, Peru, Bolivia, Ecuador, and Colombia. They run parallel to the Pacific coast the entire way, the result of the Nazca oceanic plate diving under the South American plate. Aconcagua (6,961 m) in Argentina is the Andes' highest peak and the highest mountain outside Asia.

The Rocky Mountains run through western Canada and the USA, and the Appalachian Mountains run along the eastern USA and Canada — much older and lower than the Rockies, worn down by millions of years of erosion. If the Rockies are young and jagged, the Appalachians are old and rounded, like the difference between a freshly sharpened pencil and one worn down from years of use.

The Sierra Madre ranges (Occidental and Oriental) frame Mexico's central plateau on either side.

6. Oceania's Mountain Ranges

The Great Dividing Range runs along Australia's eastern coast, the country's most significant highland feature, though modest in height compared to the ranges above. In New Zealand, the Southern Alps run through South Island and hold Aoraki/Mount Cook, the country's highest peak.

7. Major Plateaus of the World

A plateau is elevated flat land, and exams test three things about each one: which country or continent it sits in, roughly how it formed, and one standout fact.

The Tibetan Plateau, called the "Roof of the World," is the highest and largest plateau on Earth, averaging over 4,500 m elevation and covering parts of China, with the Himalayas forming its southern wall. Nearly every major Asian river — the Indus, Ganga-Brahmaputra, Yangtze, Mekong — begins from this plateau or its glaciers, which is why it earns the nickname "Water Tower of Asia."

The Deccan Plateau in peninsular India formed from massive volcanic lava flows (the Deccan Traps) roughly 66 million years ago, the same eruption event linked to the dinosaur extinction debate. It is bordered by the Western Ghats and Eastern Ghats. Since this is a world geography chapter, remember the cross-reference: Deccan is India's own answer to the "volcanic/lava plateau" category that exams also test globally.

The Bolivian Plateau (Altiplano) in South America, sitting between two arms of the Andes in Bolivia and Peru, is the world's second-highest plateau after Tibet and hosts Lake Titicaca, the highest navigable lake in the world.

The Colorado Plateau in the southwestern USA is famous for hosting the Grand Canyon, carved by the Colorado River cutting through layers of rock over millions of years.

The Plateau of Iran sits between the Zagros and Elburz mountain ranges, covering most of Iran and parts of Afghanistan and Pakistan.

The East African Plateau carries the Great Rift Valley, a massive crack in the Earth's crust running from the Red Sea down through East Africa, and holds several of Africa's highest peaks and largest lakes along its edges.

Memory hook: For the "famous plateau + famous feature" pairing, use "TBCI" — Tibet gives rivers, Bolivia gives Titicaca, Colorado gives the Grand Canyon, Iran sits between two ranges. Read it as "Tibet's Big Canyon Idea" to lock the order.

8. Formation Types of Plateaus — The Quick Classification

Exams occasionally ask you to classify a plateau by how it formed, so keep three categories in mind. Volcanic (lava) plateaus build up from repeated lava flows hardening in layers — the Deccan Plateau is the textbook Indian example. Tectonic plateaus rise when a broad section of crust gets pushed upward without folding into peaks — the Tibetan Plateau falls here, lifted as the Indian plate rammed into Asia. Dissected (erosional) plateaus form when rivers cut deep valleys and canyons into an original flat highland — the Colorado Plateau is the standard example, since the Grand Canyon is literally the river doing the cutting.

Think of it like a cake: a volcanic plateau is baked layer by layer, a tectonic plateau is a whole cake pushed up on a jack, and a dissected plateau is a cake somebody has been slicing into for millions of years.

9. Ranges and Countries They Connect — India Angle

Since these exams love an India connection, note the ranges that touch India directly or matter for India's strategic geography. The Himalayas and Karakoram form India's northern mountain wall and border zones with China, Nepal, Bhutan, and Pakistan. The Hindu Kush, though not in India, explains historical invasion routes into India through Afghanistan, a fact that regularly appears in combined history-geography questions. The Ural Mountains matter for India's trade-and-geopolitics questions about Russia spanning two continents.

10. Common Range-Country Mix-Ups

Exam trap: Three pairs trip up almost every batch of students. First, Alps vs Andes — both are famous fold mountains, but Alps are in Europe and Andes are in South America; a question naming a country like Peru or Chile always means Andes. Second, Atlas vs Aravalli — Atlas is in North Africa (Morocco/Algeria/Tunisia), Aravalli is in India (Rajasthan), and both are sometimes listed together in "old fold mountains" questions since both are heavily eroded. Third, Rockies vs Appalachians — both are in North America, but Rockies are the younger, taller western range and Appalachians are the older, shorter eastern range; if a question mentions "oldest mountains in North America," it means Appalachians, not Rockies.

Quick Revision — One-Line Facts

• Fold mountains form by crust compression; the Himalayas, Alps, Andes, Rockies, Urals are all fold mountains.
• Block mountains form along fault lines with steep sides; examples: Vosges, Black Forest, Sierra Nevada.
• Volcanic mountains build from repeated eruptions; examples: Kilimanjaro, Mount Fuji.
• Mount Everest (8,849 m) sits on the Nepal-China border, the world's highest peak.
• K2 (8,611 m) in the Karakoram Range is the world's second-highest peak.
• The Ural Mountains in Russia form the conventional Europe-Asia boundary.
• The Hindu Kush spans Afghanistan and Pakistan, historically an invasion route into India.
• The Alps run through France, Switzerland, Italy, Austria, and Germany; highest peak Mont Blanc (4,808 m).
• The Pyrenees separate Spain and France, with Andorra nestled inside them.
• The Carpathians curve through Central-Eastern Europe; the Apennines run down Italy's spine.
• The Atlas Mountains separate the Sahara from the Mediterranean coast across Morocco, Algeria, and Tunisia.
• Mount Kilimanjaro (5,895 m) in Tanzania is Africa's highest peak, a standalone volcanic mountain.
• Mount Kenya is Africa's second-highest peak, also volcanic.
• The Andes run about 7,000 km along South America's west coast, the longest continental range on Earth.
• Aconcagua (6,961 m) in Argentina is the highest peak outside Asia.
• The Rockies run through the western USA and Canada; the Appalachians run along the east, much older and lower.
• The Sierra Madre Occidental and Oriental flank Mexico's central plateau.
• The Great Dividing Range runs along Australia's east coast.
• The Southern Alps in New Zealand hold Aoraki/Mount Cook.
• The Tibetan Plateau, the "Roof of the World," is the highest and largest plateau, source of most major Asian rivers.
• The Deccan Plateau formed from the Deccan Traps lava flows about 66 million years ago.
• The Bolivian Plateau (Altiplano) is the world's second-highest plateau, home to Lake Titicaca.
• The Colorado Plateau in the USA hosts the Grand Canyon.
• The Plateau of Iran lies between the Zagros and Elburz ranges.
• The East African Plateau carries the Great Rift Valley.
• Volcanic plateaus form from lava layers; tectonic plateaus rise as a whole block; dissected plateaus are carved by river erosion.
• Lake Titicaca, on the Bolivian Plateau, is the world's highest navigable lake.
• The Grand Canyon was carved by the Colorado River over millions of years.
• Old fold mountains like the Urals, Appalachians, and Aravallis are lower and more rounded than young fold mountains.
• Young fold mountains like the Himalayas and Andes are still rising and have sharp, jagged peaks.

Memory Tables

Major Mountain Ranges by Continent

Range	Continent	Countries Spanned	Type	Notable Peak/Fact
Himalayas	Asia	India, Nepal, Bhutan, China, Pakistan	Fold	Mount Everest (8,849 m)
Karakoram	Asia	India, Pakistan, China	Fold	K2 (8,611 m)
Hindu Kush	Asia	Afghanistan, Pakistan	Fold	Historic invasion route
Ural Mountains	Asia/Europe boundary	Russia	Old fold	Divides Europe and Asia
Altai Mountains	Asia	Russia, Mongolia, China, Kazakhstan	Fold	Meeting point of 4 countries
Alps	Europe	France, Switzerland, Italy, Austria, Germany	Fold	Mont Blanc (4,808 m)
Pyrenees	Europe	Spain, France	Fold	Andorra located here
Carpathians	Europe	Romania, Slovakia, Poland, Ukraine	Fold	Curves through E. Europe
Apennines	Europe	Italy	Fold	Italy's central spine
Atlas Mountains	Africa	Morocco, Algeria, Tunisia	Fold	Sahara-Mediterranean divide
Drakensberg	Africa	South Africa	Fold/escarpment	Eastern South Africa
Andes	South America	Chile, Argentina, Peru, Bolivia, Ecuador, Colombia	Fold	Aconcagua (6,961 m)
Rockies	North America	USA, Canada	Fold	Younger, taller western range
Appalachians	North America	USA, Canada	Old fold	Older, shorter eastern range
Great Dividing Range	Oceania	Australia	Highland	East coast of Australia
Southern Alps	Oceania	New Zealand	Fold	Aoraki/Mount Cook

Major Plateaus of the World

Plateau	Location	Formation Type	Key Fact
Tibetan Plateau	China (bordering India)	Tectonic	Highest & largest plateau, "Water Tower of Asia"
Deccan Plateau	India	Volcanic (lava)	Formed by Deccan Traps, ~66 million years ago
Bolivian Plateau (Altiplano)	Bolivia, Peru	Tectonic	Second-highest plateau, holds Lake Titicaca
Colorado Plateau	USA	Dissected (erosional)	Hosts the Grand Canyon
Plateau of Iran	Iran	Tectonic	Between Zagros and Elburz ranges
East African Plateau	East Africa	Tectonic/rift	Carries the Great Rift Valley

Practice MCQs

Q1. Which mountain range forms the conventional boundary between Europe and Asia? (a) Alps (b) Ural Mountains (c) Carpathians (d) Atlas Mountains

Q2. Mount Everest lies on the border of which two countries? (a) India and Nepal (b) Nepal and China (c) India and China (d) Bhutan and China

Q3. The Deccan Plateau in India is an example of which type of plateau? (a) Tectonic plateau (b) Dissected plateau (c) Volcanic (lava) plateau (d) Intermontane plateau

Q4. Which mountain range runs along the west coast of South America? (a) Rockies (b) Andes (c) Appalachians (d) Atlas

Q5. The Grand Canyon is carved into which plateau? (a) Tibetan Plateau (b) Bolivian Plateau (c) Colorado Plateau (d) Deccan Plateau

Q6. Which African mountain is the highest peak on the continent? (a) Mount Kenya (b) Atlas Mountains (c) Mount Kilimanjaro (d) Drakensberg

Q7. The Pyrenees mountains separate which two countries? (a) Italy and France (b) Spain and France (c) Spain and Portugal (d) France and Germany

Q8. Which plateau is known as the "Roof of the World"? (a) Bolivian Plateau (b) Tibetan Plateau (c) Iranian Plateau (d) Colorado Plateau

Q9. K2, the world's second-highest peak, belongs to which mountain range? (a) Himalayas (b) Hindu Kush (c) Karakoram (d) Altai

Q10. Which mountain range historically served as an invasion route into the Indian subcontinent from Central Asia? (a) Ural Mountains (b) Hindu Kush (c) Zagros Mountains (d) Atlas Mountains

Q11. Lake Titicaca, the world's highest navigable lake, is located on which plateau? (a) Tibetan Plateau (b) Colorado Plateau (c) Bolivian Plateau (Altiplano) (d) Deccan Plateau

Q12. Which of these is classified as a block (fault-block) mountain? (a) Himalayas (b) Andes (c) Black Forest (d) Rockies

Q13. The Great Rift Valley is associated with which plateau? (a) East African Plateau (b) Iranian Plateau (c) Deccan Plateau (d) Colorado Plateau

Q14. Which statement correctly distinguishes the Rockies from the Appalachians? (a) Rockies are older and shorter; Appalachians are younger and taller (b) Both ranges formed at the same time and are equal in age (c) Rockies are younger and taller; Appalachians are older and shorter (d) Appalachians run along the west coast of North America

Q15. The Aravalli Range in India and the Atlas Mountains in Africa are both commonly cited examples of which category? (a) Young fold mountains (b) Block mountains (c) Old, heavily eroded fold mountains (d) Volcanic mountains

Answer Key

Q	Answer	Reason
1	(b)	The Ural Mountains run north-south through Russia and are the standard textbook Europe-Asia divide.
2	(b)	Everest sits exactly on the Nepal-China border, not India, a common confusion since Everest is often linked with India in casual speech.
3	(c)	The Deccan Plateau formed from layered lava flows (Deccan Traps), making it a volcanic plateau, unlike the tectonically uplifted Tibetan Plateau.
4	(b)	The Andes run the entire west coast of South America, parallel to the Pacific, the longest continental range in the world.
5	(c)	The Colorado River cut the Grand Canyon into the Colorado Plateau in the USA over millions of years.
6	(c)	Mount Kilimanjaro (5,895 m) in Tanzania is Africa's highest peak and stands alone as a volcanic mountain, not part of a range.
7	(b)	The Pyrenees form the natural border between Spain and France, with Andorra tucked inside the range.
8	(b)	The Tibetan Plateau, averaging over 4,500 m, is called the "Roof of the World" and feeds most major Asian rivers.
9	(c)	K2 (8,611 m) belongs to the Karakoram Range, distinct from the neighbouring Himalayas.
10	(b)	The Hindu Kush, spanning Afghanistan and Pakistan, was the historical gateway for invasions into the Indian subcontinent.
11	(c)	Lake Titicaca sits on the Bolivian Plateau (Altiplano), the world's highest navigable lake.
12	(c)	The Black Forest in Germany is a classic fault-block mountain, formed by a rigid crust segment rising along a fault, unlike the fold mountains in the other options.
13	(a)	The Great Rift Valley runs through the East African Plateau, a massive crack in the Earth's crust from tectonic activity.
14	(c)	The Rockies are geologically younger and taller; the Appalachians are older and have eroded down to lower, rounder peaks over time.
15	(c)	Both the Aravallis and the Atlas Mountains are ancient fold mountains heavily worn down by erosion, unlike young ranges such as the Himalayas or Andes.