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.
Yanchi County, located in the east of Ningxia Hui Autonomous region, is a county under the jurisdiction of Yinnan region and a famous Tan sheep producing area in Ningxia. The border area between the agricultural and nomadic peoples of China in history. The county government is stationed in Huamachi town. County from southeast to northwest for the vast dry steppe and desert steppe, rich in "salt, fur, sweet licorice". Ningxia Tan Sheep, which is well-known at home and abroad, is the main economic source of Yanchi. There are more than 20 natural salt lakes in the north, east and southwest of the county, so it is named "salt pond". On December 7, 2016, Yanchi County was listed as the third batch of national comprehensive pilot areas for new urbanization. On September 29, 2018, the government of Ningxia Hui Autonomous region approved Yanchi County to withdraw from the sequence of poor counties. On October 22, 2018, he was selected as the first for the integrated development of the primary, secondary and tertiary industries in rural areas in 2018.