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GigaFlood Field Trips

Lake Missoula Flood:

Channels, Obstacles & Overlooks in the

Portland/Vancouver Area


All-day field trip showing how the Portland/Vancouver area was shaped by the Lake Missoula Flood.  Sites include: Grant Butte channel, huge boulders at Columbia Park, Sullivan’s Gulch, Portland Bluff, Cape Horn in the Columbia River Gorge, Washougal River  channel, and the Prune Hill overlook.  You will never look at this area the same again.


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Take your group on a fun field trip and let us be your guide.  

We offer the following tours and can tailor it to your interests.  

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