Hunan province. High-speed service area refers to a convenient, comfortable and safe rest and service environment on expressway to meet the basic needs of passengers during long-distance driving. Baidu map shows that the South Great Wall Service Area is located in Fenghuang County, Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Province. It is the service area on Hangrui Expressway. The service area provides services such as refueling, catering, rest and shopping, which provides convenience for passing vehicles and passengers. Hangzhou-Ruili expressway, referred to as "Hangrui Expressway" for short, is the expressway connecting Hangzhou in Zhejiang Province and Dehong Autonomous Prefecture in Yunnan Province in China, with a total length of 2,956.225 kilometers.