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.
Dongliao County is located in the central and southern part of Jilin Province. Dongliao River originated in the territory and got its name from the river. It covers an area of 2186 square kilometers and has jurisdiction over 13 townships and 233 administrative villages with a total population of 360000. It is the first batch of national ecological construction demonstration areas, national commodity grain base, national one million mu artificial forest advanced county, national resource-based city succession alternative industry special support county, national cultural construction advanced county, the hometown of Chinese folk culture and art (Manchu paper-cut), the hometown of Chinese Errenzhuan art. Dongliao County is an emerging county with relatively developed modern agriculture, circular economy and automobile equipment manufacturing. In 2013, Dongliao County achieved a GDP of 2.01991 billion yuan, an increase of 23.6% over the same period in 2012 at comparable prices, of which the primary, secondary and tertiary industries were realized.