Geologic History of the Columbia River Gorge, as Interpreted From the Historic Columbia River Scenic HighwayGeologic History of the Columbia River Gorge, as Interpreted From the Historic Columbia River Scenic Highway

A reprint of the Columbia River Gorge, Corvallis, 1916, published by the Oregon Bureau of Mines and Geology, and revised in 1923 with a new historical introduction and a geological introduction. Heavily illustrated. Annotation copyrighted by Book News, Inc., Portland, OR