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.
Yangshan County, which belongs to Qingyuan City, Guangdong Province, is located in the northwest of Guangdong Province, the middle part of Qingyuan, the southern foot of Nanling Mountains and the middle reaches of Lianjiang River. it is located between longitude 112 °22 °01mm east and latitude 23 °58470 °24 °5552' north. It is one of the 21 key counties of poverty alleviation and development in Guangdong Province. There was Yangyu State in the warring States period, Yangshanguan was established at the end of the Qin Dynasty, and Yangshan County was located in Gaozu of the Western Han Dynasty, which has a history of more than 2200 years. The county has a total area of 3418 square kilometers and has jurisdiction over 12 towns and one Yao township. As of 2018, Yangshan County has a total population of 569000. Yangshan County, 160 kilometers away from Guangzhou, is an important part of the "two-hour life circle" in the Pearl River Delta. The waterway is convenient. Lianjiang flows through the county from north to south, all the year round.