Oregon State

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: February 14, 2022

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    Mailing Address:

    Program Manager
    Ice Age Floods National Geologic Trail
    1008 Crest Drive

    Coulee Dam , WA 99116


    (509) 237-9722

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