 | Bluffs; Chinle Formation; Cliffs; Dockum Group; Paria Plateau; Triassic | The south and east edges of Arizona's Paria Plateau form the Vermilion Cliffs which are said to be one of the most spectacular and extensive cliff faces in the United States. Unusually colorful because of the especially variegated Chinle Formation that forms the lower strata, the escarpment runs for over 30 miles and reaches heights of 2,000 feet. View Geological Time Scale for this image. |