Much has been written about the fact that the rich soil of the Willamette Valley is actually from eastern Washington, brought here by the ice age Lake Missoula Floods. It was this soil that attracted the Oregon Trail pioneers to become part of one of the largest non-forced migrations in all of history. What has not been written is that from Pendleton to the The Dalles some of the very trails the pioneers used were actually channels of those very floods – “The Ice Age Oregon Trail” – .
September is when we partner with the Tualatin Library and make a presentation that is especially relevant to Tualatin and Washington County. This program is about how the ice age floods made the level pathways that the pioneers used to get to this area. Join us as Rick Thompson takes us on a visual journey with photos, LIDAR and maps along the canyons, through the water gaps and next to the giant gravel bars the pioneers saw as they traveled the flood channels carved long before they arrived.
When: Thursday. September 21st at 7:00 PM
Where: Tualatin Library, 18878 SW Martinazzi Ave, Tualatin, Oregon 97062
Mr. Thompson is president of the Lower Columbia Chapter of the Ice Age Floods Institute and author of the book: “GigaFlood – the Largest of the Lake Missoula Floods in Northwest Oregon and Southwest Washington” as well as many drive guides revealing numerous features still visible today from the Lake Missoula Floods.
For more information call: Sylvia Thompson 503-257-0144.