The word "cap" is gray in the Tajik language. Sure enough, the river flowing down from the heights was mixed with a lot of rocky sand, which caused the water to be turbid and finally turned into mud gray, so it seems that the river is like a taupe river. The Gaiwan Grand Canyon is the gateway to the Pamirs. The checkpoint is set up at the Kunlun Pass, where all passengers must get off the bus and pass ID cards and border guard passes through the border checkpoint. From the border checkpoint to the Bailu Lake in Blumkou The section of the Kunlun Mountains is the most urgent section of the altitude. At this time, it is already four kilometers and the air is relatively thin.