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Author, geologist lectures on ice age

Waucoma hosts event at adult center

Author and geologist Bruce Bjornstad will give an illustrated lecture about the Ice Age (or "Missoula") floods during the Indian Creek Open House event on Wednesday, Oct. 22, at the Hood River Valley Adult Center (2010 Sterling Place).

Bjornstad's slideshow presentation will be accompanied by maps and photos, showing current day features and a history of the floods. Bjornstad will be signing his book "On the Trail of the Ice Age Floods: A Geological Field Guide to the Mid-Columbia Basin" during the open house and after the lecture.

The book signing starts at 6 p.m. and the lecture begins at 7:30.

The guide explores the origins, timing and frequency of the Ice Age floods and describes each of 19 geologic features they left behind. It is also an exciting field guide to features, trails and tours in the Mid-Columbia Basin where we may witness today the awesome power of the ancient floods.

The guide includes:

Explanations of landforms created by the floods, from hanging coulees and giant gravel bars to ice-rafted "erratics" such as boulders carried on huge ice bergs and deposited hundreds of miles from their places of origin.

Detailed descriptions of 70 distinct flood-formed features scattered throughout the basin, with driving directions to observation points

30 off-road hiking and biking trails where adventurers can walk and ride amid the flood geology.

5 driving tours and 2 aerial tours for day trips to view the scope of the landscape carved by the great floods.

Illustrated with more than 200 maps, schematics, photos and illustrations, including 16 pages of color plates, On the Trail of the Ice Age Floods provides a clear, concise and easily useable guide to the remarkable geologic record of the great Ice Age floods.

Bjornstad is a licensed geologist and hydrogeologist in Washington and Oregon and senior research scientist at the Pacific Northwest National Laboratory. He has studied the Ice Age floods and explored every corner of the Northwest over the last 25 years. An active member of the Ice Age Floods Institute, he regularly publishes and leads lectures and field trips on the Ice Age floods.

This event is co-hosted by the Hood River Watershed Group, the Columbia River Gorge Chapter of the Ice Age Flood Institute, and Waucoma Bookstore.

For more information call (541) 386-5353 or visit

Location: Hood River Valley Adult Center, 2010 Sterling Place, Hood River, OR 97031

Contact: Waucoma Bookstore 541-386-5353 or


Waucoma Bookstore

212 Oak Street

Hood River, OR 97031

(541) 386-5353


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