Cap Rock Escarpment

The Caprock Escarpment is a significant geological feature in Texas, United States, marking the natural boundary between the High Plains to the west and the North Central Plains to the east. It forms the eastern edge of the Llano Estacado, or "Staked Plain".1

This escarpment, stretching approximately 200 miles, is characterized by a hardpan layer of calcrete (calcium carbonate) that resists erosion and can rise up to 1,000 feet. Rivers and streams have carved into the escarpment, creating formations like Palo Duro Canyon. Caprock Canyons State Park, located within this region, is known for its wildlife and a large colony of free-tailed bats. An escarpment is generally defined as a steep wall of rock, earth, or ice.123