Echoing-Sand Mountain also known as Mingsha Mountain, is an impressive mountain of sand that is 40km in length, 20km in width with an average height of 100m. The name comes from when the wind blows, the sand echoes due to the movement within this type of sand.  The sand dunes come in all different shapes that include; a wave shape similar to a snake, imposing pyramid shape and flat fish scales shapes.  The sand is also comes in various colours that include black, white, red & yellow.