Chapter IV, Cliffs and Terraces Summary and Analysis

The Terrace Plateaus are a group of tablelands. The Paria and Colorado are the eastern border with the Wash and Pine Mountains being the western border. The Grand Canyon forms the southern border and the Servier River is the northern border. It is an area characterized by plateaus with mesas, buttes, cliffs and canyons. All of these features are more profound here than in other areas.

Thinks was the area of limestone, shale and sandstone deposits. These cliffs lead to plateaus that lead to other cliffs. They are like a series of steps in a staircase. The cliffs are the result of erosion and run from east to west. The canyons run from north to south.

There are north-south lines in between the cliffs and plateaus, which are faults, or breaks in the...