Ad-Dahna Desert passages which can be several kilometers long. Local Bedouin have always known these caves and some were used as water supplies. They were first systematically studied in the 1981, and later explored and reported by the Saudi Geological Survey. Ad-Dahna Desert The ad-Dahna Desert is the central division of the Arabian Desert. It is a corridor of sandy terrain forming a bow-like shape that connects an-Nafud desert in the north to Rub' al-Khali desert in the south. Its length is more than 1,000 km siding Twaik Mountains from the east and does not exceed 80 km in width. It is
Libyan Desert Libyan Desert The Libyan Desert forms the northern and eastern part of the Sahara Desert. It describes that part of the Sahara that lies within the present-day state of Libya; it also historically describes the desert to the south of Ancient Libya, a territory which lay to the east of the present-day state. The Libyan Desert is one of the driest, harshest and most remote parts of the Sahara, the world's largest hot desert. This extended desert country is barren, dry and rainless. Modern Libya is divided into the regions of Cyrenaica, Tripolitania and the Fezzan. The country covers an