Captures footage from throughout the continent. Includes the formation of the Appalachian and Rocky Mountains, the advance and retreat of the glaciers and major volcanic eruptions. Terminology includes orogeny, glaciation, erosion, deposition, plate tectonics, plateaus, faulting and plains. Filmed on location at Grand Canyon, Yosemite, Death Valley, Bryce National Park, Colorado and the Appalachian Mountains. .