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.
Guzhen County, which belongs to Bengbu City, Anhui Province, is located in the northeast of Anhui Province, on the north bank of the middle reaches of the Huaihe River, adjacent to the outskirts of Bengbu to the south, Tuohe River to the north and Lingbi County to the north, Wuhe County to the east, Huaiyuan County to the southwest, and Changqiao District of Suzhou to the northwest; the topography is a sloping plain, located in the transition zone between subtropical and warm temperate zones; the total land area is 1363 square kilometers. Guzhen County has a long history. Liu Bang, the ancestor of the Han Dynasty, set up Guyang County here, and the relics still exist; during the Taihe period of the Northern Wei Dynasty, Guyang Town was changed to Guyang Town, which later evolved into a solid town; in the first 202 years, the famous "Battle of Guxia" took place in Guzhen, which opened the foundation of the Han Dynasty for 400 years, leaving touching stories such as "besieged on all sides" and "Farewell my Concubine". "Guxia site" was listed as a national key cultural relic protection unit; archaeologists discovered 4.