Oregon collected much of sediments carved from the Chanelled Scabland of Washington State. Ice Age Floods flowing from Walulla Gap traveled down the Columbia River and covered the Willamette Valley with hundreds of feet of floods deposites. Explore Oregon and all the Ice Age Floods features along the way.
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Last updated: April 10, 2023
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Contact Info
Mailing Address:
Program Manager
Ice Age Floods National Geologic Trail
1008 Crest Drive
Coulee Dam,
WA
99116