“蜀道之难,难于上青天”。唐朝诗人李白的这句诗真实表达了四川地理环境的险要和交通运输的艰难,大山的阻隔造成山里山外在经济文化上的两重世界。在达州地区万源市一个高山环 “The difficulty of the Shu Road, it is difficult on the sky.” The poem by Li Bai, a Tang Dynasty poet, truly expresses the danger of Sichuan’s geographical environment and the difficulties in transportation. The obstruction of the mountains has caused the economic and cultural double-world of the mountains and mountains. Wanda city in a high mountain ring