Plan Your Visit

When the ice dams broke, huge walls of water raced to the Pacific Ocean, cutting new canyons and depositing sediments. The impact of these floods covers 16,000 square miles thousands (41,440 km2) in the Pacific Northwest. This large area iniclude parts of Montana, Idaho, Washington and Oregon. Today the efforts of many public and private groups support better understanding and appriciation for the unique Ice Age Floods features.

One can visit parks, natural sites and museums to learn more and explore. Many features are so large that they can be seen while driving by or stopping at an overlook. Expore 'places' with connections to the Ice Age Floods by state below.

Montana - Glacial Lake Missoula
Idaho - The Breakout Zone
Washington - Channeled Scabland
Oregon - Columbia River and Willamette Valley

Looking for more information about about Ice Age Floods? Check out our partner, the Ice Age Floods Institute, and read about the history of the floods.

For a glossary of the geologic features you may witness, check out the Photos and Multimedia page.

Last updated: February 10, 2022

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Contact Info

Mailing Address:

Program Manager
Ice Age Floods National Geologic Trail
1008 Crest Drive

Coulee Dam , WA 99116


(509) 237-9722

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