Badain Jaran Desert is a third largest desert in China due to its side. The desert consistent in the Inner Mongolia and two more of China province, Gansu and Ningxia. Because of the huge amount of area with 49,000 sq. kilometers and 500 meters heights of dune – it was become the world’s third biggest, highest and tallest stationary dune in the world. The desert also features over 100 spring-fed lakes lying between the dunes of fresh water while others are extremely saline. These lakes give the desert named in Mongolian is “mysterious lakes”. It is also crossed by one river, the Ruo Shui (“weak water”), which has formed an alluvial plain in the desert.