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.
Litang County, which belongs to Ganzi Tibetan Autonomous Prefecture of Sichuan Province, is located in the west of Sichuan Province and southwest of Ganzi Tibetan Autonomous Prefecture, 285km away from Kangding, 654km away from the provincial capital Chengdu, 99 °19mm longitude 100 °56km east longitude, 28 °57km Latitude 30 °43km north latitude, and 4014.187 meters above sea level where the county government is located. In 2011, Litang County has a total area of 14352 square kilometers and has jurisdiction over 5 districts, 24 townships, 231 villages and 282 village groups. by the end of 2011, Litang County had a resident population of 70420, with a natural population growth rate of 7.63 ‰. There are 9 ethnic groups: Tibetan, Han, Mongolian, Hui, Naxi, Tujia, Yi, Miao and Qiang, Litang, Tibetan, Tibetan Pinyin: Litan