Roadside Geology of Oregon By (author): "Donald W. Hyndman, David D. Alt"Genres:Nonfiction books Science books Travel books Geology books Field Guides books ISBN0878420630ISBN139780878420636AsinRoadside Geology of OregonOriginal titleRoadside Geology of Oregon (Roadside Geology Series)SeriesRoadside Geology Series #2"[It] provides a handy and understandable account, either to read at home, or to carry along on trips."-Oregon Historical Quarterly