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.
Wuchuan Gelao and Miao Autonomous County (referred to as Wuchuan County) is an autonomous county under the jurisdiction of Zunyi City, which is located in the border area of Guizhou and Chongqing. It is one of the two ethnic minority autonomous counties in China with the Gelao nationality as the main ethnic group. Wuchuan County is located in the northeast of Guizhou Province, connected with Dejiang County and Yanhe Tujia Autonomous County in the east, Zheng'an County and Daozhen Gelao and Miao Autonomous County in the west, Fenggang County in the south, and Wulong District in Chongqing and Pengshui Miao Tujia Autonomous County in the north. By the end of 2017, Wuchuan County covers an area of 2777.59 square kilometers and has jurisdiction over 3 streets, 11 towns, 2 townships, 81 villages and 41 communities, with a resident population of 323100, with ethnic minorities accounting for 95.9% of the total population. On April 24, 2019, the people's Government of Guizhou Province formally approved the autonomy of the Gelao and Miao ethnic groups in Wuchuan.