Hisma Plateau is situated northwest of the Kingdom of Saudi Arabia, stretching from the outskirts of Jabal Midian in the west to the edges of Harrat al-Harrah in the east. It also extends into the Jordanian territory in the north. The plateau's elevation ranges between eight hundred and 1,700 m above sea level, slightly increasing towards the center of the plateau, east of Tabuk City in al-Tubayq Province. However, its surface recedes near Tabuk City, forming an inland depression pouring i...

Ad-Dahna' Desert sand contains iron oxide, which gives it its red color. These sandy formations stretch from the Northern Border Province, extending downward to Hail Province , then to Qassim and Riyadh , finally reaching the Eastern Province . Ad-Dahna' Desert spans over 45,000 km 2 , representing 7.1 percent of the total sand accumulations in the Kingdom of Saudi Arabia. The highest elevation of dunes in ad-Dahna' Desert above sea level is 779 m, located in Ramlat al-Ashyakh, e...