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.
Huzhu Tu Autonomous County is a county under the jurisdiction of Haidong City, Qinghai Province. it is located in the east of Qinghai Province and north of Haidong City, relying on the Daban Mountains of Qilian Mountains in the north, adjacent to Menyuan Hui Autonomous County of Haibei Prefecture in the northeast, adjacent to Tianzhu Tibetan Autonomous County and Yongdeng County in Gansu Province in the northeast, Ledu District of the municipal government in the southeast, bounded by Huangshui in the south, facing Pingan District in the south, Datong County in Xining City in the west, and the provincial capital Xining City in the southwest. The county is about 64 kilometers from north to south and 86 kilometers from east to west, with a total area of 3423.9 square kilometers. There are no lakes in the county, there are 8 large and small natural rivers, all of which belong to the Yellow River basin and Huangshui water system, with a total length of 2895 kilometers. The bluestone of the Daban Mountains runs through the whole territory from northwest to southeast, dividing the whole county into two major topographic units. Huzhu Tu Autonomous County has jurisdiction over 8 towns and 9 townships.