Giant Ripples in the Scablands
Season 3 Episode 6 | 5m 11s
The fingerprints of rushing water rise from the desert as huge ripples of rocks. The patterns tell a story of the speed, depth, and breadth of the last major Ice Age Flood that surged down the Columbia River and carved the gorge at the famous Gorge Amphitheatre.
Aired: 01/29/19Video has closed captioning.