The word "Shangri-La" comes from a novel written by the famous writer James Hilton in 1933 - "The Lost Horizon." According to James Hilton himself, the novel is inspired by the famous expedition by the famous Chinese explorer Joseph Locke in the National Geographic magazine, the exploration experience of the Tibetan region in southwest China centered on Lijiang, China. Shangri-La in the novel is described as a paradise surrounded by snow-capped mountains, rich and peaceful, free and easy, and peaceful in various religions.In October 2006, China National Geographic called the 318 National Highway, which is more than 5,000 kilometers long from Shanghai to Tibet, known as the Chinese landscape avenue. This section is a landscape corridor with a high concentration of beauty in China and the world. The southern Sichuan-Tibet line is a section of this landscape. It is like a beautiful jade belt crossing the territory of Ganzi. It is the watershed of the 318 national highway with elevation, scenery and culture from Han to Tibet. It presents a magnificent picture of various poses and beautiful scenery. Whether you are a senior veteran who is always ready to pack a backpack, or a self-driving madman who is always on the road; a fan of landscape photography, or a researcher of ecological climate; a worshipper of natural landscapes, or a seeker of humanities and customs, will be deep Deeply fascinated by the unobtrusive picture of this road.