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.
Maqin County, located in the southeast of Qinghai Province and northeast of Guoluo Tibetan Autonomous Prefecture, is a national "Sanjiangyuan" ecological reserve. The county has a total area of 13400 square kilometers in 2009, of which the grassland area is 17.6362 million mu, and the available grassland area is 16.2801 million mu, accounting for 92.3% of the grassland area. It is a typical plateau and mountain type, with an average elevation of more than 4100 meters. It now has jurisdiction over 35 administrative villages and 96 animal husbandry cooperatives in 6 townships and 2 towns. In December 2016, it was listed as the third batch of national comprehensive pilot areas for new urbanization. On December 29, 2018, the sixth national unity and progress demonstration zone (unit) was named by the State Civil Affairs Commission.