San Antonio (/ˌsæn ænˈtoʊnioʊ/ SAN an-TOH-nee-oh; Spanish for "Saint Anthony"), officially the City of San Antonio, is a city in Texas, United States. The city is the seventh-most populous in the United States, the second-largest in the Southern United States, and the second-most populous in Texas. It is the 12th most-populous city in North America, with 1,434,625 residents in 2020.
Founded as a Spanish mission and colonial outpost in 1718, the city in 1731 became the first chartered civil settlement in what is now present-day Texas. The area was then part of the Spanish Empire. From 1821 to 1836, it was part of the Mexican Republic. It is the oldest municipality in Texas, having celebrated its 300th anniversary on May 1, 2018.
Xinlong County, which belongs to Ganzi Tibetan Autonomous Prefecture of Sichuan Province, is located in the middle of Ganzi Prefecture in Sichuan Province and the southeast edge of Qinghai-Tibet Plateau. It belongs to the contact zone between West Sichuan Mountain Plain and Hengduan Mountains. Xinlong County is connected with Luhuo County and Daofu County to the east, Yajiang County and Litang County to the south, Baiyu County to the west, Ganzi County to the north, Dege County to the northwest, and latitude 30 °23 to 31 °32 'and longitude 99 °37 to 100 °54' east. The terrain of Xinlong County is high in the north and low in the south. The highest elevation is 5992 meters and the lowest point is 2760 meters above sea level. Ganzi Xinlong Highway to the north of Xinlong County is connected with National Highway 317 via 100 kilometers. By the end of 2013, Xinlong County has an area of 9182.74 square kilometers and has jurisdiction over 1 town, 18 townships and 1 street office, with a total population of 49833. 2013