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.
Baojing County, which belongs to Xiangxi Tujia and Miao Autonomous Prefecture, is located in the east of Yunnan-Guizhou Plateau, in the middle of Wuling Mountains, northwest of Hunan Province, bordering Jishou City, Huayuan County, Yongshun County, Guzhang County, Longshan County and Xiushan County of Chongqing Municipality. The total population is 310000, and the main ethnic groups are Tujia and Miao people. Jurisdiction over Qianling, Fuxing, Purong, Maogou, Yezhuping, Qingshuiping, Beer, Paddy River, Wanmipo, Hulu 10 towns and Datuo, Yang Dynasty, Tu Chao, Mercury, Qingshui, ramming sand 6 townships, with a total area of 1760.65 square kilometers. In 2015, Baojing County was under the jurisdiction of 2 townships and 10 towns after the adjustment of township division. Baojing is a state-level poverty-stricken county. Youshui River is the most mysterious, characteristic and promising mother river in western Hunan.