Types of Sand Dunes
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.
These dunes are among the highest in the world; many of them are above 200 metres, the highest being the one nicknamed Big Daddy, about 325 metres high, however the highest dune in the Namib Desert, Dune 7, is about 388 metres high.
La Teste-de-Buch, France La Dune du Pyla Bordered by forest on three sides and the ocean on the other, the Great Dune of Pyla is the highest sand dune in Europe.
Other Photos (click to enlarge): The Dunes Backside of Sand Mountain - Panoramic (click to enlarge)
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.