There is a place in Washington state where time rolls back 13,000 years to a time when Ice Age floods carved a 400-foot-high, 3.5-mile-wide cliff that dwarfed Niagara Falls in both span and fury. That ...
National Parks Service releases animation of Ice Age floods The National Parks Service built on decades of research and science to create a never-before-seen POV of the Ice Age (Missoula) floods.
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