Colliding continents, volcanic eruptions, and lava flows have shaped the landscape of Washington and Oregon over the last few million years. However, in recent geologic time the most dramatic geologic events in the region may have been the Missoula Floods. The Missoula Floods were giant ice age floods that traveled at over 90 miles per hour from Montana to the Pacific Ocean and covered the land with over 400 feet of floodwater. The floods were so powerful that they moved mountains, destroyed everything in their path, and transported the rich soil of eastern Washington to the Willamette Valley.

Teacher Resources
Teaching objective, national and state content standards, print and Web resources. Grades 5-10.

Maps and Charts
Map of the Glacial Lake Missoula pathway and basic geology charts.

Program Transcript and Viewing Suggestions
Timecodes, program transcript, and classroom viewing suggestions.

Classroom Activities
Pre-viewing and post-viewing activities for the "Ice Age Flood" video program.

Glossary
List of terms related to the geology presented in the "Ice Age Flood" video.