The Randall Carlson
The Randall Carlson
@therandallcarlson·632K subscribers·2.1K videos

How were the Grand Canyon and Great Lakes formed? The Big Picture Ep 10

Posted

July 6, 2025

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This episode of the Big Picture explores the possibility that massive, rapid flooding events played a central role in shaping major geographic features across North America — including the Grand Canyon, the Great Lakes, and the Channeled Scablands. Randall & Becket walk through detailed geomorphic evidence suggesting that these landforms may not have been formed slowly over millions of years, but rather through sudden, high-energy processes involving enormous volumes of water.

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Guests & Subjects Covered

Big PictureNorth AmericaGrand CanyonGreat LakesChanneled Scablands RandallEvidence FloodsTheir ImpactMega Tsunamis

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How were the Grand Canyon and Great Lakes formed? The Big Picture Ep 10 · The Randall Carlson · Sentinel