It is comparable to the U.S. No. 66 U-shaped road - the big Chai Dan section 315 national road the difference is on this smoky national road but there is a mysterious world you can not imagine straight The road is infinitely extended forward Gobi, desert, Yadan, lake... When the roadside scenery is changing luck, it is possible to encounter camels, yellow sheep, wild horses, foxes and other wild animals here Ultraviolet rays, sandstorms are extremely strong must pay attention to protect the beautiful white face note that hat, scarves, sunglasses can not be less attractions: Dachaidan u-type highway / Hh/Transportation: Self-driving (from Xining to 315 National Road)