The Randall Carlson
@therandallcarlson·632K subscribers·2.1K videos
These Floods Carved Channels Into Solid Rock
Posted
February 18, 2026
Views
18,018
Likes
969
Comments
31
Engagement
5.55%
February 18, 2026
18,018
969
31
5.55%
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The Missoula Floods carved branching channels directly into solid rock across eastern Washington, inundated the Columbia Gorge and Willamette Valley, and discharged into the Pacific Ocean. That's the kind of water volume required to create the channeled scablands, not gradual erosion but catastrophic flooding on a scale that reshapes entire landscapes. And it wasn't limited to just one region as mega floods occurred along every major ice sheet margin during the Pleistocene across North America, Eurasia, and South America.
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