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.
Huachi County, which belongs to Qingyang City, Gansu Province, is located in the east of Gansu Province and northeast of Qingyang City, bordering Zhidan, Wuqi and Dingbian in Shaanxi Province in the northeast, and Huanxian, Qingcheng and Heshui in the southwest. It is located between longitude 107 °29 "108 °33" east and latitude 36 °07 "36 °51 'north. It has jurisdiction over 4 towns and 11 townships, with a total land area of 3776 square kilometers and a total population of 138000 (resident population in 2016). In 2013, the GDP of Huachi County reached 9.2 billion yuan. Huachi County has been awarded as "National Scientific and technological Progress County", "National Advanced County in surveying and Mapping Management", "Provincial double support Model County", "Provincial Greening Model County", "Provincial civilized County" and "Provincial Health County" by the state and province. December 2016, listed as the third batch