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.
Sanyuan County, Xianyang City, Shaanxi Province, is known as "Jiayi" in history and "Chiyang" in ancient times, which is located in the middle of Guanzhong Plain in Shaanxi Province. It is named after Xiyuan (also known as Qiliyuan), Central Plains (also known as Xinxingyuan) and Dongyuan (also known as Lingqian Yuan). Sanyuan is the ancient capital city, since the Northern Wei Taiping Zhenjun seven years (AD 446) home county, has a history of more than 1570 years, known as "food and clothing capital, hundreds of millions of mouth" reputation. County area of 576.9 square kilometers, commonly used arable land area of 491265 mu, jurisdiction 1 street office 9 towns 4 centers 172 administrative villages, the county's registered population of 408165 (2018). Sanyuan is located in the arc center of Xi'an, Xianyang, Weinan, Tongchuan and other surrounding large and medium-sized cities, connected with Lintong, Fuping and Yanliang in the east, Gaoling in the south and Jingyang and Chun in the west.