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.
Lingdong District, which belongs to Shuangyashan City, Heilongjiang Province, is located 9 kilometers south of Jianshan District, where the Shuangya Municipal Government is stationed, less than 500 kilometers away from Harbin, the provincial capital. Harbin High-grade Highway connects with Lingdong District. It is bordered by Shuangyashan Farm in the northeast, Jixian County in the northwest, Huanan County and Baoqing County in the south, Jianshan District in the north and Jianshan District in the north. it is located in the hilly area with undulating topography, high in the west and low in the east, living at the northern foot of Wanda Mountain, with an average elevation of 360 meters. The total area of the city is 802 square kilometers.