** Najd Plateau located in the center of the Arabian Peninsula and is bordered on the west highlands of Hijaz and Dahna desert from the east and the desert north of influence and the Empty Quarter in the south.
** Average height of 900 m and descend from the west to the east and there are a number of oases and interrupted by a series of valleys, such as Wadi Bisha and vernier.
* There are some areas, such as high mountain that rises fennel and 1700.
** In the West, including a range of hills stretching like Asir and stones.
التسميات
Plateaus Arab world