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As recently as the year 2007, the Canyon was considered to be roughly 6 million years old. New evidence announced in 2008 indicates the Canyon to be roughly 13 million years old.
First answer by ID2547382627. Last edit by Jones1rocks. Contributor trust: 113 [recommend contributor]. Question popularity: 22 [recommend question]
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Answers.com > Wiki Answers > Categories > Science > Earth Sciences > Geology > How old is the Grand Canyon?
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