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.
Fengxian, which belongs to Baoji City, Shaanxi Province, is located in the southwest of Shaanxi Province, adjacent to Taibai County in the east, Liuba County and Mian County in Hanzhong City to the south, Liangdang County in Gansu Province to the west, Chencang District and Weibin District to the north, between latitude 33 °34 °57 "- 34 °18 °21" north and longitude 106 °24 °54 "- 107 °7 °30" east, with a total area of 3187 square kilometers. The northeast is 297 kilometers away from the provincial capital Xi'an and 102 kilometers away from Baoji. Fengxian, known as "Fengzhou" in ancient times, is the only place leading from Chang'an to Ba and Shu. It is known as "Qin-Shu throat and Han Bei Lock key". The old way, Lianyun and praise-inclined three plank roads pass through the county. There are three 4A scenic spots and three 3A scenic spots in the territory, and more than 100 kinds of non-metallic mineral deposits such as lead, zinc, gold and silica have been proved.