Donglan County is located in the northwest of Gui, the south edge of Yunnan-Guizhou Plateau, the middle reaches of Hongshui River; east of Jinchengjiang District, west of Fengshan County, south of Dahua and Bama Counties, north of Nandan and Tian'e Counties, 308 kilometers away from Nanning City, the capital of the autonomous region, and 108 kilometers away from Jinchengjiang District of Hechi City, covering an area of 2437 square kilometers, with the jurisdiction of 6 towns, 8 townships and 147 villagers committees, 5 communities and 2963 villagers' groups and 3613 natural tunnels, with a total population of 319.9 thousand people. The total population is 319,900 people. Located in subtropical zone, with mild climate and abundant rainfall, Donglan County is rich in natural resources, with 63.36% of the county covered by forests. Donglan County has a long history and rich resources, and is known as “four hometowns” (the hometown of longevity, the hometown of generals, the hometown of copper drums, the hometown of chestnuts). 2010 Spring Festival, the then Premier of the State Council, Mr. Wen Jiabao, came to Donglan to inspect the county, and gave the following words: “the mountains and waters are beautiful and ecological, and the weather is new for the people and the land”. “This is the high generalization and evaluation of Donglan by the Premier.