sandoushuizuzizhixianIntroduction：Introduction to Sandu: Sandu Shui Autonomous County is a Guizhou Autonomous Prefecture of Guizhou Province. It is the only autonomous county in China in the southeast of the Buyi and Miao Autonomous Prefecture. In the hinterland of "Moon Mountain, Leigong Mountain". It is connected to Lijiang and Leishan in the east, Libo in the south, Dushan and Duyun in the west, Danzhai in the north, 230 kilometers from the provincial capital Guiyang, and 2,400 square kilometers in the county. In 2009, there were 314,700 people in the county, including 307,700 ethnic minorities, 209,400 aquariums, accounting for 64.8%, and more than 60% of the country's aquariums lived in Sandu. The National Highway 321 crosses the county and is one of the important passages for the southwestern province to the south. It is also the most convenient passage on the tourist routes of Guilin, Guiyang and Kunming Dabanjiang National Karst Forest Reserve.