Title: From the shield to the sea
Description: Features field guides and descriptions of eight geological field trips of the area near Pittsburgh, Pennsylvania. The trips highlight the region's geology from eastern Ohio to the Central Appalachian Valley and Ridge.
Subjects: Congresses, Geology, Catskill Formation (Pa.), Fieldwork, Paleontology, Stratigraphic Geology, Orogeny
Places: Pennsylvania, Catskill Formation
Time periods: Devonian