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Alan Alda in Scientific American Frontiers
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Alan Alda
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The Secret Canyon

  The best kept secret of American archaeology is now revealed – an entire canyon of perfectly preserved 1,000-year-old remains.
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Segments in this show
premiering Wednesday March 30, 2005
Teaching Guide
Future CommuteRespecting RemainsHow Old Are You?Rock Art Gallery
©2000 The Chedd-Angier Production Company

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