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.
Aba County is located on the southeast edge of the Qinghai-Tibet Plateau, at the confluence of Sichuan, Gansu and Qinghai provinces, bordering Ruoergai County, Hongyuan County, Malkang County, Rangtang County and Maqu County of Gansu Province, Jiuzhi County of Qinghai Province, and Banma County. It is an important transportation hub from the mainland to the northwest, an important trade center and material distribution center, and a county dominated by animal husbandry with both agriculture, animal husbandry and forestry. it is a typical old, small, border, poor and sick area. The topography of the county is complex, the terrain gradually inclines from northwest to southeast, the county seat is 3290 meters above sea level, the highest elevation is 5154 meters above sea level, and the lowest elevation is 2936 meters above sea level. The runoff belongs to the Yangtze River and Yellow River systems, belongs to the semi-humid monsoon climate in the cold temperate zone of the plateau, and there is no obvious difference between the four seasons, the temperature difference between day and night is large, the frost-free period is short, the solar radiation is strong, and the average annual temperature is 4 ℃. Aba County in 1951