Bristlecone Point and Sinking Ship show the tilt associated with the Paunsaugunt Fault. Movement along it dropped the plateau about 2,000 feet below the rocks to the east, bringing the park's limestone layers level with the softer marine shales in the Grey Cliffs. That shift helps explain the height contrast with Table Cliffs across the valley, about 13 miles away. On a clear day, the horizon reaches Navajo Mountain, roughly 80 miles distant. The Black Mountains and, farther northwest, the Tushar Mountains also show evidence of volcanic activity about 20 million years ago.