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.
Honggu District belongs to Lanzhou City, Gansu Province, located in the far suburbs of Lanzhou City, located in the middle of Gansu Province, was established in 1960, named because of the Honggu River east of Xiangtang Gorge, the geographical coordinates are 102 °50mm east longitude 102 °54' and 36 °19mm Met 36 °21' north, Xigu District to the east, Datong River to the west, Huangshui River to the south and Qinghai Minhe Hui Autonomous County and Yongjing County to the south, the loess mountains in the north adjoining Yongdeng County. It is located in the geometric center of the two provincial capitals of Lanzhou and Xining. In 2014, Honggu District has a total area of 567.66 square kilometers, with a total population of 150000 (2014), and has jurisdiction over three streets, three towns and one township. In 2014, Honggu District achieved a GDP of 10.528 billion yuan, an increase of 15.5% over 2013.