San Jose,[A] officially San José (/ˌsæn hoʊˈzeɪ, -ˈseɪ/; Spanish: [saŋ xoˈse]; Spanish for 'Saint Joseph'),[B] is a major city in the U.S. state of California that is the cultural, financial, and political center of Silicon Valley and largest city in Northern California by both population and area. With a 2020 population of 1,013,240, it is the most populous city in both the Bay Area and the San Jose-San Francisco-Oakland Combined Statistical Area, which contain 7.7 million and 9.7 million people respectively, the third-most populous city in California (after Los Angeles and San Diego and ahead of San Francisco), and the tenth-most populous in the United States. Located in the center of the Santa Clara Valley on the southern shore of San Francisco Bay, San Jose covers an area of 179.97 sq mi (466.1 km2). San Jose is the county seat of Santa Clara County and the main component of the San Jose–Sunnyvale–Santa Clara Metropolitan Statistical Area, with an estimated population of around two million residents in 2018.
Youyu County is located in the northwest border of Shanxi Province, belonging to Shuozhou City, Shanxi Province. It is bounded by the ancient Great Wall in the north and northwest, adjacent to Liangcheng and Helinger County in Inner Mongolia, Zuoyun County, Datong City in the east, and Shanyin County and Pinglu District in the south. Youyu County is surrounded by mountains, high in the south and low in the north. The Cangtou River runs from north to south, with a width of 45.7km from east to west and 67.7km from north to south. It has jurisdiction over a provincial eco-cultural tourism development zone, four towns, six townships, one scenic spot and 288 administrative villages, with a total area of 1969 square kilometers and a total population of 115000 (total population at the end of 2017). Youyu County is rich in tourism resources, including Xiahukou Scenic spot, Youyu Spirit Exhibition Hall, Cangtou River Wetland Park and other tourist attractions. It has successively won "National AAAA tourist Scenic spot", "Chinese charm Town", and "the most worthwhile."