Sinan County, Tongren City, Guizhou Province under the jurisdiction of the county, located in the northeast of Guizhou Province, the Wujiang River, Xia Zhu Tongren Prefecture, geographical coordinates of longitude 107 & deg; 52 & Prime; 108 & deg; 28 & prime ;, latitude 27 & deg; 32 & Prime; 28 & deg; 10 & prime ;. County east to west 57.6 km north-south width of 69.3 kilometers, east of Indian River County, south Shiqian, west of Fenggang County, north of Dejiang County. Sinan County four major county roads network has Sinan - shiqian, Sinan - dam field, Sinan - Fenggang