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.
Altay was the pastoral land of Chinese ethnic minorities in ancient times. According to historical records, the tribes who lived here in the Qin Dynasty were Sai people who moved from the Hexi Corridor in Gansu Province. Since the Western Han Dynasty, successive central governments have set up administrative organs here. "Altay" is Turkic, meaning "Jinshan". It gets its name because of the gold in the mountains. It is said that there are 72 ditches in the Altai Mountains. The Ertix River in Altay is the only river in China that flows into the Arctic Ocean. The Brento Sea, which is located in Fuhai County, covers an area of 100000 hectares and is rich in more than 10 kinds of fish, known as the "fishing hometown of the North". Altay mountains and rivers are magnificent and colorful, with unique natural scenery, the main scenic spots are Kanas Lake Nature Reserve, Burgen River Beaver Nature Reserve, Butterfly ditch and so on.