Northwest is suitable for self-driving, our Qinggan Meng self-driving, 2500 roads, all kinds of landforms along the way, the Gobi desert snow mountain grassland, the no-man's land travels 450 kilometers, after the big winter tree pass, it is still very Excited. In the vast northwest, you can often see groups of cattle and sheep. They will not panic when they encounter vehicles. At this time, all the vehicles will slowly form, letting the cattle and sheep go first. Dadongshushankou is located in Qilian County of Haibei City, with an altitude of 4,120 meters. It is the highest point in the journey of most of the self-driving Sichuan-Tibet lines. All passing vehicles will stop and punch here.