174 km. Linwu is one of the oldest counties in southern Hunan. Linwu was established in the Warring States period, and the county was established in the fifth year of Emperor Gaozu (202 BC). County area 1383.06 square kilometers. Linwu to Shuikoushan 147 km. On 20 15, the Hunan provincial government approved the merger of Baisong Town and Shuikoushan Sub-district Office in Changning City to establish Shuikoushan Town. Shuikoushan Town is located in the middle of Hengyang City.