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.
Huizhou County, which belongs to Longnan City, Gansu Province, gets its name because of the Huishan station under the northern corner of the city. It is located in the southeast of Gansu Province and the northeast of Longnan City. It is located at the southern foot of the Qinling Mountains and the Huicheng basin in the Qinba Mountains in the upper reaches of the Jialing River. It is bordered by Tianshui City to the north, Liangdang County to the east, Liancheng County to the west, and Lueyang County, Hanzhong City, Shaanxi Province in the southeast. Huixian County has jurisdiction over 13 towns, 2 townships, 213 villages and 10 communities, with a total area of 2722.9 square kilometers and a total population of 223500 (2015). Huixian is known as "Longshang Xiao Jiangnan", with a warm and humid climate, hills and basins, and there are scenic spots such as Santan Scenic spot, Jialing River rafting, Qingniling and other scenic spots in Huizhou County. Famous specialty products are walnut, ginkgo biloba, Langya honey, kiwifruit,