'Badanjilin Desert is located in Alashan, west of Inner Mongolian Autonomous Region with the total area of 47,000 square kilometers. It is ranked as the third largest in China and the fourth largest in the world. The sand dune averages about 200 meters in the hinterland. Overlooking the desert, the rolling sand dunes seem to be gilded with a film of silky gold. ' (cited from web).
With colleagues, we made a tour in two and half a day in June 2010 crossed about 250km in this desert...