1. Litang County is dominated by hilly plateaus and mountain plains, with some alpine valleys. Due to the uplift of orogeny, the terrain in the central part of the west fluctuates greatly, tilting to the southeast and northeast. The water system of mountains and rivers in the territory is north-south, with east-west arrangement, alternating mountains and rivers, and obvious vertical distribution of mountains.

2. sertar county has a long history. As early as 3000 years ago, humans lived here. Dong clan, one of the six clans of ancient Tibetans, lived a nomadic life, and the locals called it "Agalomai", which means ape-man.

3. Qinghai Lake is also called "Cuowumbu", which means "blue sea" in Tibetan. Located in the northeast of Qinghai-Tibet Plateau in Qinghai Province, China, it is the largest lake in China, the largest saltwater lake and inland lake in China, which was formed by the collapse of faults between Datong Mountain, Sun Moon Mountain and Nanshan Mountain in Qinghai. Haixinshan and Bird Island in Qinghai Lake are both tourist attractions.