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.
Xunhua Salar Autonomous County is located in the east of Qinghai Province, the eastern section of the Qilian Mountains, bordering Jishishan County of Gansu Province and Linxia County of Gansu Province to the east, Xiahe County of Gansu Province and Tongren County of Qinghai Province to the south, Jianzha County to the west, and Hualong Hui Autonomous County and Minhe Hui Autonomous County of Qinghai Province to the north, with a total area of 2100 square kilometers. As of 2011, there are 3 towns and 6 townships in the county with a total population of 126900. Xunhua Salar Autonomous County is located on the edge of the Qinghai-Tibet Plateau, which is high in the south and low in the north, surrounded by mountains and valleys, and the air current picks up. The annual average temperature is 8.7 ℃. With the global temperature rising in the past decade, the annual average temperature is more than 9 ℃. There is no heat in summer and no cold in winter. With an average elevation of 2200 meters, it is one of the lower elevations in Qinghai Province. Mean sea in river valley area