Glacial Lake Missoula Flood and its Effects in Your Backyard, a Lecture by Rick Thompson. Anyone interested in learning more about local geology can go, and it’s free. Click here
Stumptown Stories:

December 27, 2011 | 7:30pm | FREE
Jack London Bar
529 SW 4th Avenue Portland, OR
More info: http://rialtopoolroom.com/
The great ice age Lake Missoula Flood left scars literally from Montana to the Pacific Ocean. Join us as artist, photographer, and writer Rick Thomposon presents his research uncovering the effects of the Lake Missoula Flood in Northwest Oregon & Southwest Washington. This catastrophic flodd propelled over 500 cubic miles of water, ice, rock and mud across eastern Washington, further cut the Columbia River Gorge, covered the Willamette Valley with up to 400 feet of water and left gravel bars mile wide and hundreds of feet high. With color photo, topographical maps and space photos Mr. Thompson will show some of the signs still visible today.

Mr. Thompson:
A native Oregonian, Mr. Thompson is President of the Lower Columbia Chapter of the Ice Age Floods Institute who loves to share the beatury of the great Northwest. Though geology is not his profession, it is his passion. Being intrigued by the land formations, huge boulders and glacial erratics, Mr. Thompson embarked on a ten-year study to show that unlike the massive expanses of flood features in Easter Washington this area has its own treasure chest of scablands, flood channels and dramatic story to tell.