The Reef Wall
Capitol Reef is a nearly 100-mile long warp in the Earth's crust, the Waterpocket Fold is a classic monocline: a regional fold with one very steep side in an area of otherwise nearly horizontal layers. A monocline is a "step-up" in the rock layers. The rock layers on the west side of the Waterpocket Fold have been lifted more than 7,000 feet (2,134 m) higher than the layers on the east. Capitol Reef National Park, 2013