Major Mountain Ranges of the World

Major Mountain Ranges

1. The Andes

• Continent: South America
• Length: 7,000 km (Longest continental range)
• Average Height: ~4,000 m
• Highest Peak: Mount Aconcagua (6,962 m, dormant volcanic origin)
• Volcanoes: Home to the world’s highest volcanoes
• Ojos del Salado (6,893 m) is the highest active volcano on Earth
• Geological Origin: Part of the American Cordillera and Pacific Ring of Fire

2. The Rockies

• Continent: North America
• Part of: American Cordillera
• Features:
  • Includes Alaska Range, Brooks Range, Sierra Nevada, Cascades
  • Extends into Mexico through Sierra Madre Occidental/Oriental
• Cordillera Explained:
  • Almost continuous mountain chain through Americas & Antarctica
  • Backbone of the volcanic arc along Pacific Ring of Fire

3. Cascade Range

• Region: Western North America
• Geological Feature: Made up of thousands of small short-lived volcanoes
• Major Volcano: Mount St. Helens
• Cause of Volcanism: Subduction of Juan de Fuca Plate beneath North American Plate
• Part of: Pacific Ring of Fire

4. Great Dividing Range (Eastern Highlands)

• Continent: Australia
• Other Names: Eastern Highlands, Australian Alps
• Geological Formation: Due to rifting

5. Transantarctic Mountains

• Continent: Antarctica
• Significance: Divides East and West Antarctica
• Remoteness: Among the least explored

6. Ural Mountains

• Continent: Eurasia (Russia, Kazakhstan)
• Formation: Collision of Laurussia and Kazakhstania continents
• Significance:
  • Boundary between Europe and Asia
  • Rich in minerals, mined since the 18th century

7. Atlas Mountains

• Continent: Africa (Algeria, Morocco, Tunisia)
• Length: ~2,500 km
• Highest Peak: Toubkal (4,165 m) in Morocco
• Formation: Collision of African and European plates

8. Himalayan Range

• Continent: Asia (India, Nepal, Bhutan, China)
• Highest Peak: Mount Everest (8,848 m)
• Western Anchor: Nanga Parbat (near Indus)
• Eastern Anchor: Namcha Barwa (near Brahmaputra bend)
• Width: 400 km (West) to 150 km (East)
• Geology: Young fold mountains of sedimentary & metamorphic rock
• Formation: Collision of Indo-Australian Plate with Eurasian Plate
• Impact: Creates Central Asian deserts (e.g., Taklamakan, Gobi)
• Related formations: Arakan Yoma in Myanmar, Andaman-Nicobar Islands

9. Alps

• Continent: Europe (France, Italy, Switzerland, etc.)
• Formation: Collision of African & Eurasian plates
• Process: Folding and thrusting of marine sedimentary rocks
• Highest Peak: Mont Blanc (4,810 m)
• Unique Feature: Contains 100+ peaks above 4,000 m (Four-thousanders)

10. Altai Mountains

• Location: Central Asia (Russia, China, Mongolia, Kazakhstan)
• Significance: Source of major rivers like Ob and Irtysh

11. Western Ghats

• Country: India
• Length: ~1,600 km
• Other Name: Sahyadri Hills
• Importance:
  • UNESCO World Heritage Site
  • Rich in biodiversity
  • Crucial for Indian monsoon system

12. Drakensberg

• Continent: Africa (South Africa & Lesotho)
• Length: ~1,125 km
• Cultural Significance: San rock art
• Ecological Importance: Biodiversity hotspot

13. Aravalli Range

• Country: India
• Length: ~800 km
• Age: One of the oldest fold mountains on Earth
• Region: From Rajasthan to Delhi
• Highly eroded due to geological age

Beyond Earth:

• Olympus Mons (Mars)
  • Height: ~26 km
  • Tallest mountain and highest volcano in the Solar System
  • Still considered active

Longest Mountain Ranges in the World (by Length)

Mountain Range	Length (Approx.)	Key Feature
Andes	7,000 km	Longest continental mountain range
Rockies	4,830 km	Major range of North America
Great Dividing Range	3,500 km	Largest in Australia, also called Eastern Highlands
Transantarctic Mts.	3,500 km	Divides East & West Antarctica
Ural Mountains	2,500 km	Natural boundary between Europe & Asia
Atlas Mountains	2,500 km	In North Africa
Appalachian Mountains	2,414 km	Ancient mountains of Eastern USA
Himalayas	2,400 km	Home to the highest peaks including Mt. Everest
Altai Mountains	2,000 km	Crosses Russia, China, Mongolia, and Kazakhstan
Western Ghats	1,600 km	Biodiversity hotspot along west coast of India
Alps	1,200 km	Europe’s highest and most extensive range
Drakensberg	1,125 km	Highest in Southern Africa
Aravalli Range	800 km	One of the oldest fold mountains, in western India