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.
Lu County is the lower jurisdiction county of Luzhou City, Sichuan Province, which is located in the south of Sichuan Basin, between longitude 105 °10 °50 "~ 105 °45 °30" east longitude and latitude 28 °54 °40 "~ 29 °20 °00" north. Lu County is bordered by Yongchuan District of Chongqing City and Hejiang County of Luzhou City in the east, Longmatan District and Jiangyang District of Luzhou City in the south, Fushun County of Zigong City in the west, and Rongchang District of Chongqing City and Longchang City of Neijiang City in the north. Lu County is a major national cultural relic county, with 6 key cultural relics protection units such as Longnaoqiao and Song Tombs in Luxian County. It is a national construction and labor base county, a national model county with double support, a national health city, and one of the top 100 counties in the western region. On February 2, 2019, it was rated as a county-level national advanced unit of traditional Chinese medicine by the State Administration of traditional Chinese Medicine.