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The Rockies

From Alaska to New Mexico, the Rockies are one of the great mountain belts of the world--caused by tectonic forces of the Pacific Plate pushing against the North American continent. They have formed as the earth's continental crust has been shortened under pressure--by around 1 inch a year. What's more, they are still rising and they are still young in geologic terms: when the dinosaurs roamed the Earth they had not even started to form.

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  • Originally Aired December 22, 2009
  • Runtime 45 minutes
  • Content Rating United States of America TV-G
  • Network History
  • Created December 22, 2014 by
    Administrator admin
  • Modified December 22, 2014 by
    Administrator admin