KSPS Documentaries

The Creation of Landforms

Clip: Special | 4m 9s

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The Missoula floods carved new river channels or altered exiting ones along the Washington/Oregon border, created dry falls in Central Washington similar to the falls at Niagara but twice the size, and quarried gullies and canyons, the Grand Coulee being the largest.

Aired: 04/23/10 | Rating: NR

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