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.
Guanghe County, which belongs to Linxia Hui Autonomous Prefecture of Gansu Province, is located in the southwest of central Gansu Province, southeast of Linxia Hui Autonomous Prefecture, Dongxiang Autonomous County in the north, Hezheng County in the west, Kangle County in the south and Lintao County in Dingxi City in the east. The total area is 538 square kilometers (2013). It has jurisdiction over 6 towns and 3 townships, with a total population of 215600 (2013). Hui and Dongxiang account for 97.5% of the total population. In 2007, Guanghe County achieved a GDP of 642 million yuan. Guanghe is an agricultural county with poor mineral resources and frequent natural disasters such as drought and hail. it is a national and provincial key county for poverty alleviation and development. Guanghe County has famous scenic spots such as Shuiluan Cave, "New Matthew", Ancient Prince Temple, Qijiaping site and so on. In November 2019, Guanghe County was named "four"