279 - How and When Did the Grand Canyon Form?
Apr 02, 2018•8 min•Ep. 270
Episode description
Scientists agree that the great crevice in the Earth’s surface was cut away by the flow of the Colorado River. However one question is still debated: when exactly did this erosion happen to form the Grand Canyon?
Read the transcript at https://www.quickanddirtytips.com/education/science/how-and-when-did-the-grand-canyon-form
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