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.
Lufeng County is formed by the merger of Lufeng County (Jinshan Town), Luozi County (Bicheng Town), Guangtong County (Guangtong Town) and Yanxing County (Heijing Town). It is now under the jurisdiction of Chuxiong Yi Autonomous Prefecture in Yunnan Province. The county is located in the middle of Yunnan Province, adjacent to Anning City, Kunming City. Due to the discovery of the world's largest dinosaur fossils and Ramalopithecus fossils, Lufeng has been praised as "the hometown of dinosaurs", "fossil warehouse", "birthplace of Asian humans" and "natural museum" in academic circles. As of 2013, Lufeng County has a total area of 3536 square kilometers, a GDP of 12.8 billion yuan and a total population of 427000. Lufeng County has "World Dinosaur Valley", Heijing ancient town, Wutai Mountain and other tourist attractions.