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.
Gejiu City is a municipality under the jurisdiction of Honghe Hani and Yi Autonomous Prefecture, Yunnan Province, China, which is located between 102 °54'E and 103 °25'E and 23 °01'N 23 °36'. "Gejiu" is evolved from the transliteration of "fruit work" in the Yi language, which means a place to grow buckwheat and eat buckwheat. Gejiu is 280 kilometers away from the provincial capital Kunming and 200 kilometers from Vietnam. The city has a land area of 1587 square kilometers, with a total population of 453300, of which the urban population is 309500, the level of urbanization is 68.30%, the urban built-up area is 12 square kilometers, and the urban resident population is 180000. There are more than 120000 ethnic minorities living in Yi, Zhuang, Hui, Miao, Dai and Hani. Gejiu is a kind of metallurgy which mainly produces tin and produces lead, zinc, copper and other non-ferrous metals.