Gobi Desert

The Gobi (/ˈɡoʊ.bi/; Mongolian: Говь, Govi, "semidesert"; Chinese: 戈壁; pinyin: Gēbì) is a large desert region in Asia. It covers parts of northern and northwestern China, and of southern Mongolia. The desert basins of the Gobi are bounded by the Altai Mountains and the grasslands and steppes of Mongolia on the north, by the Taklamakan Desert to the West, by the Hexi Corridor and Tibetan Plateau to the southwest, and by the North China Plain to the southeast. The Gobi is most notable in history as part of the great Mongol Empire, and as the location of several important cities along the Silk Road.

The Gobi measures over 1,600 km (1,000 mi) from southwest to northeast and 800 km (500 mi) from north to south. The desert is widest in the west, along the line joining the Lake Bosten and the Lop Nor (87°–89° east). It occupies an arc of land 1,295,000 km²(500,000 sq mi) in area as of 2007; it is the fifth-largest desert in the world and Asia's largest. Much of the Gobi is not sandy but has exposed bare rock. The Gobi Desert is expanding at an alarming rate, in a process known as desertification. The expansion is particularly rapid on the southern edge into China, which has seen 3,600 km²(1,390 sq mi) of grassland overtaken every year by the Gobi Desert. Dust storms, which used to occur regularly in China, have increased in frequency in the past 20 years, mainly due to desertification. Source: Wikipedia 

Caves dot the cliff face along the Yulin River at the Yulin Caves

A beautiful oasis  - Crescent Moon Lake at Gobi Desert