More of the Colorado Plateau is found in Arizona than in any of the other four corner states. In …this elevation graphic it forms a broad green platform for a variety of different mountain types: the massive volcanoes at lower right, the cone fields of the center, long mesas near the upper edge, and the great parenthesis of the Kaibab uplift, through which the river has carved the Grand Canyon. The desert floor, where bakes the Phoenix megalopolis, is in warm hue at lower left beneath the Mogollon Rim.