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.
Tianjun County, which belongs to Haixi Mongolian and Tibetan Autonomous Prefecture of Qinghai Province, is located in the northwest of Qinghai Lake, the eastern edge of Qaidam Basin, Qilian County and Gangcha County of Haibei Tibetan Autonomous Prefecture in the east, Gonghe County of Hainan Tibetan Autonomous Prefecture and Wulan County of Haixi Mongolian Autonomous Prefecture in the south, West Pedelingha City, and the northwest is bounded by Subei Mongolian Autonomous County of Gansu Province. It is the only animal husbandry county in Haixi Prefecture, and coal and animal husbandry are the main industries. The county has a total area of 25700 square kilometers (2010) and has jurisdiction over 3 towns and 7 townships with a total population of more than 47000 (2010). There are Tibetan, Han, Hui, Mongolian, Salar and other ethnic groups. In 2008, Tianjun County achieved a gross domestic product (GDP) of 1.72 billion yuan. On September 29, 2018, the people's Government of Qinghai Province gave a reply and issued a public notice for approval.