San Diego (/ˌsæn diˈeɪɡoʊ/ SAN dee-AY-goh, Spanish: [san ˈdjeɣo]; Spanish for 'Saint Didacus') is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles.
Linyou County, which belongs to Baoji City, Shaanxi Province, is located in the northeast of Baoji City. It is a summer resort for officials of the Sui and Tang dynasties. It is named after Sui Yining's Qilin tour in the first year. It is located in the hilly and gully region of Weibei Arid Plateau in the east, Yongshou and Qianxian in the east, Qianyang and Fengxiang in the west, Fufeng and Qishan in the south, Yibin County in the north and Lingtai County in Gansu Province. It is between 107o 19mm east longitude 108o 2m, north latitude 34o 33km, with a total area of 1740 square kilometers. Linyou County is located on the Loess Plateau. After entering the country from the southwest, the remaining veins of Qianshan are branched near the two pavilions, the north branch is called Page Ridge, and the south branch is called Fengshan and Qishan. The main rivers are Qishui River, Jiufang River, Liangting River, Puhua River and so on. The annual precipitation is 640.4 mm and the average annual temperature is 9.2 ℃. Provincial highway Feng (Xiang) Ling (Taiwan), Xinxi (