The Mongolian Desert is a vast desert region located in northern China and southern Mongolia. It is composed of two major deserts, the Gobi and the Ordos. The Gobi Desert is a large desert spanning parts of northern and northwestern China and southern Mongolia. It is the world's fifth-largest desert, covering an area of 1, 295, 000 square kilometers. The Ordos Desert is a desert located in Inner Mongolia, China. It covers an area of approximately 90, 000 square kilometers. Both deserts are characterized by extreme temperatures, low precipitation, and sandy terrain.