Dunes. The Badain Jaran Desert is made up of hundreds of dunes ranging from small to large. Most of the megadunes in the desert average about 400 meters (1,300 ft) from the base while the rest average around 200 meters (660 ft). Out of all the megadunes, the Bilutu Peak ("bì lǔ tú fēng") is the most famous.
The Simpson Desert is a large area of dry, red sandy plain and dunes in Northern Territory, South Australia and Queensland in central Australia. It is the fourth largest Australian desert, with an area of 176,500 km 2 (68,100 sq mi) and is the world's largest sand dune desert.
Star dunes form only in places where wind blows from varied directions over the course of a year. At Great Sand Dunes, a large star dune complex occurs in the northeast corner of the dunefield. The tallest dune at Great Sand Dunes is 750' (229m), and known simply as The Star Dune.