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.
Daguan County, which belongs to Zhaotong City, Yunnan Province, is located in the heart of Zhaotong area in the northeast of Yunnan Province. It is located between 103 degrees 43'- 104 degrees 07'E and 27 degrees 36'- 28 degrees 15'N. Daguan County, located in the hinterland of Zhaotong, has always been the main traffic road in Yunnan and Sichuan. It was the uprising site of Li (Yonghe) and Lan (Chaoding) peasant movement. The territory has overlapping mountains and "five rivers", which are rich in hydraulic, mineral resources and native products. Fresh bamboo shoots and Cuihua tea are local specialties, rich in high-quality flue-cured tobacco. Eucommia ulmoides sells well all over the country and is one of the raw lacquer base counties in Yunnan Province.