O’Connor, Jim

Jim O’Connor is a Research Geologist at the U.S. Geological Survey in Portland, Oregon, where he has been stationed since 1996. His primary research focus is landscape evolution in the Pacific Northwest. He majored in Geological Science at University of Washington and earned M.S. and Ph.D. degrees at University of Arizona.

In Feb. 2017, Jim lectured on the Bridge of the Gods & the Bonneville Landslide.  (Updated Oct. 2021)

Pestrong, Ray

I am an Emeritus Professor of Geology in the Department of Earth & Climate Sciences at San Francisco State University. I teach majors’ courses in geomorphology and engineering geology, and a great variety of general education courses in introductory geology. My prime interest, at the moment, is “Geosciences and the Arts.” I have authored a number of college texts, have produced geologic videos, published the requisite number of articles in professional journals, and done those things expected of a university professor. What I love most, however, is teaching, and the exciting interactions possible through that venture. In Jan. of 2015, Ray presented an interesting lecture on “Earth as Art,” not a typical geologic talk, but thought provoking.

For the past 22 years I have led rafting trips on the Colorado, through the GrandCanyon. When we return from that extraordinary experience, and I have a pay.  (Updated Oct. 2021)