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.
Libo County, which belongs to Qiannan Buyi and Miao Autonomous Prefecture, is located in the south of Guizhou Province. The northeast borders Congjiang County and Rongjiang County of Qiandongnan Miao and Dong Autonomous Prefecture, Huanjiang County and Nandan County of Guangxi Zhuang Autonomous region in the southeast, Dushan County in the west and Sandu Shui Autonomous County in the north. It covers an area of 2431.8 square kilometers and has a population of 180000 (2016). Libo County has jurisdiction over one street, five towns and two townships, including Zhangjiang National Scenic spot and National Maolan Nature Reserve. The county's GDP in 2015 was 4.53 billion yuan, an increase of 13.3 percent over 2014. In December 2018, Libo County was awarded "China's Top Ten Poverty Alleviation and accurate Poverty Alleviation demonstration counties and cities in 2018". Reconfirm the national health county (township) in 2018.