Folded Mountains

Caption: The map shows the collision of India and Asia, which formed the Himalaya Mountains.

A mountain is tall and rocky land that rises high above the land around it. Mountains often have pointed tops and steep sides. They are the Earth's most majestic landforms.

The Rocky Mountain range is the highest mountain range in North America. The Rockies are folded mountains. They were formed when two of Earth's tectonic plates pushed up against each other. Folded mountains are usually made of sedimentary rock. They usually form along continental margins at the edges of continents. This is an area where thin oceanic crust meets thick continental crust.

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