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.
Daofu County belongs to Ganzi Tibetan Autonomous Prefecture of Sichuan Province, which is located in the northwest of Sichuan Province and northeast of Ganzi Prefecture. The geographic coordinates are 100 °32 degrees east longitude and 101 °44 degrees east longitude, and 30 °32 'north latitudes. The Xianshuihe fault zone, located on the southeast edge of the Qinghai-Tibet Plateau, is bordered by Danba in the east, Xinlong County in the west, Kangding County and Yajiang County in the south, and Jinchuan and Rangtang Counties in Luhuo and Aba Prefecture in the north. Daofu County covers an area of 7053 square kilometers and has jurisdiction over 4 towns and 18 townships. At the end of 2011, the registered population was 55290, with a natural population growth rate of 7.22 ‰ and a birth rate of 11.37 ‰. The regional GDP of Daofu County in 2011 was 483 million yuan, an increase of 13% over 2010, and the per capita disposable income of urban residents reached 12773 yuan.