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.
Bortala Mongolia Autonomous Prefecture, referred to as "Bozhou", belongs to Xinjiang Uygur Autonomous region. "Bortala" is Mongolian, meaning "silver grassland". It is located on the northwest edge of Xinjiang Uygur Autonomous region and in the hinterland of Eurasia. the mountains on the west, north and south are continental arid climate in the north temperate zone. With a total area of 27000 square kilometers, it has jurisdiction over 2 county-level cities and 2 counties. The total population in 2018 is 478509. Bordering Kazakhstan, Bozhou has a border of 372 kilometers. It is an important connecting point at home and abroad and a key point for import and export of goods in the "middle channel" of the Silk Road Economic Belt. The second Eurasian Continental Bridge runs through the whole territory. The China-Kazakhstan oil pipeline and the second line of the west-east natural gas pipeline pass through the border. It is the confluence of two major traffic arteries and two ports, National Highway 312 and Provincial Highway 219 and Jingyihuo.