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The best view of the Grand Canyon
Scientists still don't entirely comprehend the 1.5 billion year history of the Grand Canyon. It's a story of erosion that has created one of the most breathtaking sites in America.
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Aerial America:   The Best View of the Grand Canyon
Scientists still don't entirely comprehend the 1.5 billion year history of the Grand Canyon. It's a story of erosion that has created one of the most breathtaking sites in America.
Aired: 1/10/13
Views: 784
Network:  TV.com
 
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