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.
Binchuan County is one of the counties under the jurisdiction of Dali Prefecture in Yunnan Province. it is located on the edge of the Yunling Hengduan Mountains and the southwest of the Yunnan-Guizhou Plateau on the south bank of the Jinsha River. Most of the main mountains, dams and rivers in the territory run from north to south. The terrain is high from east to west and low in the middle. There are four river systems: Naxi River, Pingchuan River, Qingshui River and Duobeiqing River. The Naxi River is the largest, running through the central dam area of Binchuan, and the Liandong River is the largest tributary. By the end of 2010, the total population of Binchuan County was 351940. Binchuan is a multi-ethnic county dominated by the Han nationality, which is inhabited by 25 ethnic groups. There are Jizu Mountain, a national AAAA-level scenic spot. On September 29, 2018, Binchuan County was approved to withdraw from the poverty-stricken county after being studied by the Yunnan Provincial Party Committee and the Yunnan Provincial Government. December 13, 2018, selected as the dominant area of agricultural products with Chinese characteristics