Khongoryn Els

The sand dunes extend to over 965 square kilometres (373 sq mi) area.

[1][2][3] The dunes extending up to the foot of the high Altai Mountains range,[4] lie about 180 kilometres (110 mi) from Dalanzadgad.

[3] Mongolia has three types of deserts, and some of it has enough grass for livestock to graze, but the Khongoryn Els, in the extreme south of the Gobi Desert, has a huge range of sand dunes – 6–12 kilometres (3.7–7.5 mi) wide, 100 kilometres (62 mi) long (180 kilometres (110 mi) is also mentioned[5])[6] and rising to a height of 80 metres (260 ft) (a maximum height to the apex can be 300 metres (980 ft)).

The sound is also attributed to heat, the weather conditions in the desert and to the avalanche effect caused by the sand particles moving harmoniously.

[3] The northern border of the dunes is skirted by a small river, the Khonggoryn Gol, where green pastures are noted.