sentences:  The eastern side slopes downwards gradually, while the western side ends in an abrupt manner.The escarpment can be thought of as a narrow plateau, though the locals refer to it as a "jebel" ("mount").Marshall Cavendish used the name "Tuwayr Mountains" to describe mountains of central Arabia, distinct from the Shammar in the north, the Dhofar in the south, and the Hajar to the east.