"Hole in the Ground" at Rock Creek - Undersized stream shows floods activity.
NPS
Washington state is a big part of the Ice Age Floods National Geologic Trail and there are many places to go and sights to see. Explore the content below to better understand how the Ice Age floods impacted Washington state.
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Last updated: July 12, 2023
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Contact Info
Mailing Address:
Program Manager
Ice Age Floods National Geologic Trail
1008 Crest Drive
Coulee Dam,
WA
99116
