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.
Gannan Tibetan Autonomous Prefecture is an autonomous prefecture under the jurisdiction of Gansu Province, located in the southwest of Gansu Province, located in the northeast edge of the Qinghai-Tibet Plateau and the western part of the Loess Plateau, with high terrain in the northwest and low in the southeast, and has the characteristics of continental seasonal climate. The city has a total area of 38521 square kilometers and has jurisdiction over seven counties and one city, with a total population of 742300 in 2017. In Gannan Tibetan Autonomous Prefecture, there are Gahai-Zecha two national nature reserves, Lianhuashan and Yeliguan National Forest Park, as well as dozens of beautiful natural scenic spots such as Sangke grassland, the first song of the Yellow River, Dayugou and so on. There are 121 Tibetan Buddhist monasteries, including Xiahe Labrang Temple, Zhuoni Zen Temple and Luqu Langmu Monastery, which are protected by national cultural relics. There are more than ten revolutionary historical relics, such as the natural insurance Lazikou and the ruins of the Russian conference, which have the experience of the long March of the Red Army.