Scientific American Frontiers - Episode 8: The Secret Canyon

PBS, John Angier, Alan Alda

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Title: Scientific American Frontiers - Episode 8: The Secret Canyon
Producer: PBS, John Angier, Alan Alda
Category: Science, Scientific American Frontiers
Views: 411
Added: Aug 27th 2010
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Description

The best kept secret of American archeology is now revealed.

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