Taklamakan Desert of water, accounts for the somewhat wide diurnal temperature variation. The Taklamakan Desert has very little water, therefore it is hazardous to cross. Merchant caravans on the Silk Road would stop for relief at the thriving oasis towns. It was in close proximity to many of the ancient civilizations — to the Northwest is the Amu Darya basin, to the southwest the Afghanistan mountain passes lead to Iran and India, to the east is China, and even to the north ancient towns such as Almaty can be found. The key oasis towns, watered by rainfall from the mountains, were Kashgar,
Kumtag Desert Kumtag Desert is a section of the Taklamakan Desert which lies east-southeast of the Desert of Lop. It is on the other side of the Kara-koshun and reaches north-eastwards as far as the vicinity of the town of Sa-chow and the lake of Kara-nor, or Kala-chi. It is bordered by Dunhuang in the east, Tian Shan in the north, and with an area of 22,800+ square kilometers. Its southern rim is marked by a labyrinth of hills, dotted in groups and irregular clusters,worn down as it were to mere fragments of their former skeletal structure. Between these and the Altyn-Tagh,