In the Oligocene ash flows became the predominate the formation of the area, with interbedded lava flows between, beginning the second series of high magmatism formations.
These ash flows began the second series of high magmatism formations. In the Oligocene ash flows became the predominate the formation of the area, with interbedded lava flows between.
In the Oligocene ash flows became the predominate the formation of the area, with interbedded lava flows between. These ash flows began the second series of high magmatism formations.
In the Oligocene ash flows became the predominate the formation of the area, with interbedded lava flows between. These ash flows began the second series of high magmatism formations.