the fourth largest Biosphere Reserve in the world in 1991. Mongolians consider that there are 33 different Gobi , where sandy desert occupies only 3 percent of the total territory. The area is often imagined as a lifeless desert like in many other parts of the world. Gobi Desert is a land of dinosaurs and it is the home for camel breeders rich with wildlife and vegetation. Dinosaur skeletons and their petrified eggs have been preserved here to the present day. Wild asses, camels, snow leopards, mountain sheep and gazelles flourish here, as do different types of flora.
Eagle valley ( Yol Am )
Gurvansaikhan Mountains are three rocky hills, the highest of which is 2815meter above the sea level. The eagle valley a protected site in 1965, is 62 kilometers north-west of Dalanzadgad, in the centre of South Gobi aimag very wide entrance, it narrows gradually into a remarkable gorge. A spring two or three kilometers long winds its way through the defile and in July, freezing into a thick corridor of ice that stretches along a considerable distance. Following the canyon to the high rock walls has breathtaking dramatic scenery, and no doubt is one of the most beautiful places in the country.
Khongor Sand Dine (Khongoryn Els)
This is a Mongolian largest sand dune reaching a height of 800 meter in some highest areas. The sand dunes in Sevrei sum, South Gobi aimag, are called Khongoryn Els. These dunes are 20 km wide and 100 km long. The Khongoryn River flows along the sand dunes and gives birth to oases. The sand dune change the color with each hour of one day, from yellow to silver to rise colored at dawn / sundown. This dune is considered one of the biggest dunes with it is length of 180 km and width of 3-5 km. The dunes make sound like plane engine in a windy day so it has been named as "Singing Dunes".