Colorado Springs is a home rule municipality in, and the county seat of, El Paso County, Colorado, United States. It is the largest city in El Paso County, with a population of 478,961 at the 2020 United States Census, a 15.02% increase since 2010. Colorado Springs is the second-most populous city and the most extensive city in the state of Colorado, and the 40th-most populous city in the United States. It is the principal city of the Colorado Springs metropolitan area and the second-most prominent city of the Front Range Urban Corridor. It is located in east-central Colorado, on Fountain Creek, 70 miles (113 km) south of Denver.
Shuangtaizi District, which belongs to Panjin City, Liaoning Province, is located in the south of Songliao Plain, the lower reaches of Liao River and the coast of Bohai Sea. The center is located in longitude 121 °2 "122 °30" east and latitude 40 °39 "40 °37 'north. Shuangtaizi District has a total area of 121square kilometers and has jurisdiction over 8 streets and 2 towns with a total population of 220000 (2015). By 2014, the GDP of Shuangtaizi District had reached 15.03 billion yuan. Shuangtaizi District has Liaohe Forest of Steles, Lakeside Park and other scenic spots. Chen Baoku, current secretary of the Shuangtaizi District CPC Committee, Zhang Guojun, chairman of the standing Committee of the District people's Congress, and Li Jifeng, the district mayor. On November 14, 2019, Shuangtaizi District was rated as the third batch of national ecological civilization construction demonstration areas by the Ministry of Ecological Environment.