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Durango to Cascade Canyon

David Letterman speaks onstage at the First Annual Comedy Awards at Hammerstein Ballroom on March 26, 2011 in New York City.  (Photo by Dimitrios Kambouris/Getty Images)

Letterman’s Son Celebrates Birthday On Colorado Train

David Letterman’s son celebrated his 8th birthday with a ride on a historic tourist train in southwestern Colorado.

11/08/2011