Roadside Geology of Oregon SH-4C & hikes have been added

& hikes have been added

Bicentennial and Trail of the Ancients Scenic Byways are also all marked

only those involving a component of Quaternary faulting (fault-related folds) are included here

National corporations and mass labor movements took root in the state as commerce expanded

and energy resources

Roadside Geology of Oregon SH-4C & hikes have been addedWhen the first edition of Roadside Geology of Oregon was published in 1978, it was revolutionarythe first book in a series designed to educate, inspire, and wow nongeologists. Back then, the implications of plate tectonic theory were only beginning to shape geologic research and discussion. Geologists hadnt yet learned that Oregons Klamath and Blue Mountains were pieces of far traveled island arcs and ocean basins that had been piled against the