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.
Datong Hui and Tu Autonomous County is under the jurisdiction of Xining City, Qinghai Province. it is located in the Hehuang valley in the east of Qinghai Province, the southern foot of Qilian Mountain, and the Beichuan River basin in the upper reaches of Huangshui River. it is a transitional zone between Qinghai-Tibet Plateau and Loess Plateau. It has a total area of 3090 square kilometers, has jurisdiction over 9 towns and 11 townships, with a total population of 453000 (2012). There are 26 ethnic groups, including Han, Hui, Tu, Tibetan, Mongolian, etc., and has twice been named "hometown of Chinese Folk Culture and Art" by the Ministry of Culture. In November 2019, Datong Hui and Tu Autonomous County was named as the national demonstration county of "Sihao Rural Road" and was selected into the second batch of water-saving society construction standard counties (districts).