Registration now open.
Our four-day excursion will travel down the coast to Brookings and across to Grants Pass before returning via I-5. The emphasis will be on the complex geology of the Mesozoic accreted terranes of the Klamaths but on the way we will take a look at Tertiary terranes of the north coast and interactions of Columbia River Basalt flows with coastal sediments.
We can't get enough of exploring Downtown Portland Building Stone! If you missed our Spring tour or just want to see more interesting buildings, join us at 10:00 a.m. October 22nd for Ancient Walls 2 (North Tour). This field trip is open to public. Cost is $10.
Photos from our Latest Field Trip
Neogene Geology of the Eastern Columbia River Gorge
Most field trips require GSOC membership. Learn more about joining GSOC!
Dedicated to Pacific Northwest Geology since 1935
The Geological Society of the Oregon Country (GSOC) is a non-profit organization based in Portland, Oregon. The society is dedicated to the study of geology in the Pacific northwest and is open to persons with all levels of education and professional backgrounds.