[Mile-marker 22]
The Summerville Formation is exposed on the right for about the next
half a mile. In the next three-quarters of a mile to Highland View the
roadcuts are in the sandstone ledges of the Salt Wash Member of the
Morrison Formation. Another half a mile through massive Salt Wash
sandstones takes us to the second highest point on Rim Rock Drive—the
divide between Monument and Ute Canyons, altitude 6,593 feet. From here
we may look far to the south across Glade Park to high Piñon Mesa—the
highest part of the Uncompahgre Plateau northwest of Unaweep Canyon,
where the altitude is about 9,500 feet.