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Origins OR2108

Join Origins host Ray Heiple as he welcomes, Dr. John Whitmore for, “Reflections of the Grand Canyon.”  Virtually all geologists agree that the Grand Canyon agree was carved by water.  The question is how quickly and when.  Our guest this episode of Origins has traveled to the area for over 4 decades.  We’ll talk about some of his adventures and what the fossils say about the canyon’s history.

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