On the way from Yajiang to Litang, there will be some incredible places. One is the 18th bend of Tianlu, the other is the three high mountains, the Gaoersi Mountain, the Scissors, the Kazila Mountain, and then the highest county in the world. Litang. Standing on the observation deck and looking down, in the green mountains, a road, winding and winding along the mountains, flashing silver, on the inside of one of the corners, inlaid with "Tianlu Shi Eight bends of the five characters, can not help but swear: this road repair, really enough. Kazi Lashan is the name that every friend who has experienced the self-driving tour of Sichuan-Tibet line will remember. This is the highest altitude in Sichuan Province on the Sichuan-Tibet line. The sign is a grey stone monument with the name of the mountain and the elevation. Almost all the tourists return to take a photo. It is cold and oxygen-deficient all year round, and the climate is changeable. Even in summer, the clouds are covered, and the hail is accompanied by snow and ice. It instantly becomes a frozen world. In the process of crossing the Kazila Mountain, you may experience four weathers: the sun, the rain, the snow, and the hail in one day.