On the way to Khunjerab Pass, after Gaizi border checkpoint, along the 314 national highway of Pamir plateau , there is a beautiful scene which beyond words, that is, "sand hill reflection" - white sand and quicksand flow. Where the vast sky, the wind and light water, the river as a mirror, white clouds like snow, white sand consists of more than a dozen hills which are large and small, the relative height of more than 100 meters, meandering more than ten kilometers.