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.
Guyuan, a prefecture-level city under the jurisdiction of Ningxia Hui Autonomous region, known as Dayuan, Gaoping, Xiaoguan and Yuanzhou in ancient times, is located in the south of Ningxia Hui Autonomous region, is a deputy central city of Ningxia Hui Autonomous region, and is located on the northwest edge of China's Loess Plateau. It is a typical continental climate; it has jurisdiction over 1 district and 4 counties, with a total area of 10540 square kilometers; by the end of 2018, the total number of permanent households in Guyuan is 352000, the total resident population is 1.2424 million, and the total registered population is 1.5077 million. Guyuan is located in the center of the triangle composed of the three provincial capitals of Xi'an, Lanzhou and Yinchuan, one of the five prefecture-level cities of Ningxia and the only non-Yellow River city. Shaanxi-Gansu-Ningxia Revolutionary Base Revitalization Planning Central City, South Ningxia Regional Central City, political, Economic, Cultural Center and Transportation Hub