Missoula Ice Age Floods Gravel Bar, Lyle, Washington
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Rose Red
N 45° 40.969 W 121° 17.941
10T E 632460 N 5060214
Northeast of Rowena Crest is Lyle, Washington which was built on a huge gravel bar left by the cataclysmic Missoula Ice Age Floods. There is a great view of Lyle from Rowena Crest.
Waymark Code: WM4F1T
Location: Washington, United States
Date Posted: 08/15/2008
Views: 86
According to the signboards, volcanism, uplift, erosion and human endeavor have indelibly etched the Columbia River Gorge. But the cataclysmic Missoula floods (15,000 to 18,000 years ago) during the end of the last Ice Age affected the landscape more than any other terrestrial force, creating these scablands called the Rowena Plateau.
As a massive ice sheet advanced from Canada, it dammed the Clark Fork River with up to 2000 feet of glacial ice creating the enormous lake across western Montana. When the rising waters undermined or shattered this ice dam, tremendous floods swept across the northern Idaho, eastern Washington and down the Columbia River Basin. Torrents of ice and water raged downstream as many as 40 to 100 times, scouring away soils at elevations up to 1000 feet! Northeast of Rowena Crest is Lyle, Washington which was built on a huge gravel bar left by the cataclysmic Missoula Ice Age Floods. There is a great view of Lyle from Rowena Crest.
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