Which city does Yumushan service area belong to?

According to Baidu map query, Yumushan service area belongs to Hengyang City, Hunan Province. Yumushan Service Area is located in Tanheng West expressway, Hengnan County, Hengyang City. Yumushan is located in Yumushan Town, zhengxiang district, Hengyang City, an important transportation hub in China, a central and southern town and a famous historical and cultural city. It is a national AAA-level tourist attraction, a national famous religious shrine, a provincial key scenic spot and the green lung of Hengyang City. Yumushan is located at the southwest 15km of Hengyang city center, adjacent to expressway, the Beijing-Hong Kong-Macao double-track expressway in the east, Shinao Peak at an altitude of 5 15m in the south, Tangsan Town, the southwest gateway of Hengyang in the west, and Gui Xiang high-speed railway and Laoxianggui railway in the north. It is a battleground for southern Hunan military strategists and one of the main battlefields in the periphery of 1944 Hengyang Defence War.