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.
Gaolan County, which belongs to Lanzhou City, Gansu Province, is located in the central part of Gansu Province, between longitude 103 °32'- 104 °14 °E and latitude 36 °05'- 36 °51'N, with a total area of 2136 square kilometers. Gaolan County has a temperate semi-arid climate with an average annual temperature of 7.2℃. As of 2018, Gaolan County has jurisdiction over 6 towns, and the county government is stationed in Shidong Town. By the end of 2017, the total registered population of Gaolan County was 147300. In the Western Han Dynasty, it belonged to Jincheng County and first bought Jincheng County. In the third year of Qianlong in the Qing Dynasty (1738), it was renamed Gaolan County because of Gaolan Mountain. In April 1970, Gaolan County was reclassified under the jurisdiction of Lanzhou City. Gaolan County has Dongguo pear, soft pear, Bailan melon, red sand potato, black melon seeds and other specialties. Tourist attractions include Guli Garden, Shidong Temple and Ling in Shichuan Town.