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.
Zhenba County, under the jurisdiction of Hanzhong City, Shaanxi Province, is located in the southern tip of Shaanxi Province, the southeast corner of Hanzhong City, the west of Daba Mountain and the eastern part of Micang Mountain. It is known as the "south gate" of Shaanxi Province. As the feudal city of Han General Banchao, the Red fourth Front Army once established the Sichuan-Shaanxi Revolutionary Base and built Shaannan County, covering an area of 3437 square kilometers, with residents of Han, Miao, Hui, Uygur, Zhuang and other ethnic groups. Zhenba County is the largest Miao settlement in the northwest. The county has Baitianhe scenic tourist area, the Miao village unique to the northwest, and the largest Bashan wood and bamboo forest in Asia. In March 2019, it was on the list of the first batch of revolutionary cultural relics protection and utilization districts and counties.