October 2, 2014
This lecture was presented at the Columbia Gorge Interpretive Center in Stevenson, Washington, on Sunday, Sept. 21, 2014 by Dr. Duane Ray, of Gresham, Oregon. Dr. Ray retired after 30 years from Lucent Technologies (Bell Laboratories) and last year was the chair of the Senior Studies Institute associated with Portland Community College. He is a member of the Mazamas mountaineering club.
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