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.
Wudi County, which belongs to Binzhou City, Shandong Province, is located in the northernmost part of Shandong Province, located on the coast, bordering Bohai Bay in the northeast, Zhanghua District in the southeast, Yangxin County in the south, Qingyun County in Dezhou City in the west, and Haixing County and Huanghua City in Hebei Province by Zhangwei River in the north. It is located between 37 °4 degrees north latitude and 38 degrees 16 miles north latitude and 118o 04 degrees east longitude, with a total area of 1961 square kilometers. Wudi County is the intersection of the two major economic zones of Beijing, Tianjin and Shandong Peninsula, known as "Hebei-Shandong hub" and "Qiyan fortress". It is not only the key area for the comprehensive development of the Yellow River Delta, but also the forward position for the construction of "Shandong at Sea". In 2018, Wudi County has jurisdiction over 2 streets and 10 towns with a total registered population of 456100, achieving regional gross domestic product (GDP).