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.
Yaozhou District, which belongs to Tongchuan City, Shaanxi Province, is located on the southern edge of the Weibei Plateau in central Shaanxi, southwest of Tongchuan City, Xunyi County in the north, Sanyuan County in the south, Wangyi District and Yintai District in Tongchuan City in the northeast, Fuping County in the southeast and Chunhua County in the southwest. It is between 10834 miles east longitude and 109 degrees 06 east longitude and 34 degrees 48 miles north latitude and 35 degrees 19 degrees north latitude, with a total area of 1617 square kilometers. Yaozhou District, known as Yaoxian in ancient times, is the natural gateway from Guanzhong to northern Shaanxi, known as "Beishan lock key" and "Guanfu lapel throat". Yaozhou has a long history and profound cultural heritage. It used to be the ruler of Kangshi in ancient times, with a history of more than 2160 years. It was Sun Simiao, a medical scientist in the Sui and Tang dynasties, Fu Xuan, a philosopher in the Western Jin Dynasty, Liu Gongquan, a calligrapher in the Tang Dynasty, Linghu Deyi, a historian, and a landscape painter in the Northern Song Dynasty.