Sandu gaoping experimental middle school. Inquired by Sandu County Education Bureau, Sandu Gaoping Middle School is the full name of Sandu Gaoping Experimental Middle School and Sandu County, which belongs to Qiannan Buyi and Miao Autonomous Prefecture of Guizhou Province, located in the southeast of Qiannan Buyi and Miao Autonomous Prefecture, and is the only Shui Autonomous County in China.