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.
Zizhong County, which belongs to Neijiang City, Sichuan Province, is located in the middle of Sichuan Basin, the middle reaches of Tuojiang River, with latitude 29 °34'~ 30 °24 'north and longitude 104 °27' ~ 105 °07 'east. It is adjacent to Anyue County of Ziyang City and Dongxing District of Neijiang City to the east, to the south of Neijiang City and Weiyuan County, Renshou County and Weiyuan County of Meishan City to the west, and Yanjiang District of Ziyang City to the north. 143 kilometers away from Chengdu and 197 kilometers away from Chongqing, it is one of the first 27 powerful counties in Sichuan. Zizhong County covers an area of 1733.96 square kilometers and has jurisdiction over 22 towns. at the end of 2016, the county's total registered population was 1.2791 million. In 2016, the county's gross domestic product (GDP) reached 25.594 billion yuan, an increase of 8.1 percent over 2015. The territory is affected by rock strata and the topography is in the west.