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.
Yu'an District is the municipal district of Lu'an City. it is a new district established with the withdrawal of land and the establishment of the city in December 1999. Yu'an District is located in the west of Lu'an City, Jinan District in the east, Huoshan County in the south, Jinzhai County in the west and Shou County in the north. Yu'an District famous and special products are Liuangua tablets, Subu marijuana, Xuji peanut candy, etc.; scenic spots are Hengpaitou Scenic spot, Huanglian Temple, Jiugongzhai Scenic spot and so on. As of 2012, Yu'an District covers an area of 1926 square kilometers and has jurisdiction over 19 townships and 3 streets, with a registered population of 1002321. On September 25, 2018, he won the honorary title of "2018 e-commerce into rural comprehensive demonstration county" of the Ministry of Commerce. In March 2019, it was on the list of the first batch of revolutionary cultural relics protection and utilization districts and counties. April 29, 2019