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.
Yunxian, under the jurisdiction of Lincang City, Yunnan Province, is located in the southwest of Yunnan Province and at the junction of Dali, Pu'er and Lincang; it is a mountainous and semi-mountainous county with a low-latitude plateau subtropical monsoon climate and warm temperate monsoon climate; the total area is 3760 square kilometers, it has jurisdiction over 7 towns and 5 townships, and the permanent population is 466700 in 2018. Yunxian County is the north gate of Lincang area and the vast hinterland of Yunnan Province. The Lancang River, high mountains, river valleys and hot dams form a special three-dimensional climate and natural scenery. There are Great Snow Mountains, Dabing Mountain primeval forests, Nago River, Wenzhu River, Nayu River, River Valley Hot Springs and so on. There are also cultural relics and cultural landscapes such as bronze drums, bronze spears, Yuan Ming pottery, Maolan Chang'an Bridge, County Writing Pagoda, ancient mosques and magnificent Dawu temples. 2018