Where are the Andes Mountains?
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Where are the Andes?

Andes
The Andes

About 199 million years ago, near the beginning of the Jurassic period, in the time of the dinosaurs, the supercontinent of Pangaea broke up and the pieces began to float away from each other. The Pacific Ocean tectonic plate began to squeeze under the South America plate, pushing up the Andes mountains that now run all along the west side of South America.

Andes

The Andes mountains are far older than the Alps, the Rockies, or the Himalayas. They're the oldest high mountains in the world, though they are newer than the Appalachian mountains or the Ural mountains.

The Andes were the original home of llamas and wild tomatoes and potatoes, among other things.

Learn by Doing - Graph the height of mountain chains
More about the Rocky Mountains

Bibliography and further reading about the Andes:

More about plate tectonics
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Karen Carr is Associate Professor Emerita, Department of History, Portland State University. She holds a doctorate in Classical Art and Archaeology from the University of Michigan. Follow her on Instagram or Twitter.
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