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.
Anyue County, which belongs to Ziyang City, Sichuan Province, is located in the central part of Sichuan Basin, the east of Ziyang City, the center of Chengdu-Chongqing Economic Zone and the straight line midpoint of Chengdu and Chongqing, and is known as "the Heart of Chengdu and Chongqing". Between latitude 29 °40 °32 "~ 30 °18 °53". It is bordered by Tongnan District of Chongqing City in the east, Dazu District of Chongqing City in the southeast, Rongchang District of Chongqing City and Dongxing District of Neijiang City in the south, Dongxing District of Neijiang City in the southwest, Zizhong County of Neijiang City in the west, Lezhi County in the northwest and Anju District of Suining City in the northwest. In 2018, Anyue County covers an area of 2700 square kilometers and has jurisdiction over 69 townships with a total population of 1.63 million. The GDP of the whole county has reached 34.501 billion yuan, and the investment in fixed assets of the whole society has reached 14.556 billion yuan.