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Denver (/ˈdɛnvər/) is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the United States and the fifth most populous state capital. It is the principal city of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area and the first city of the Front Range Urban Corridor.

Denver is located in the Western United States, in the South Platte River Valley on the western edge of the High Plains just east of the Front Range of the Rocky Mountains. Its downtown district is immediately east of the confluence of Cherry Creek and the South Platte River, approximately 12 miles (19 kilometres) east of the foothills of the Rocky Mountains. It is named after James W. Denver, a governor of the Kansas Territory. It is nicknamed the Mile High City because its official elevation is exactly one mile (5280 feet or 1609.344 meters) above sea level.[a] The 105th meridian west of Greenwich, the longitudinal reference for the Mountain Time Zone, passes directly through Denver Union Station.

Denver is ranked as a Beta world city by the Globalization and World Cities Research Network. The 10-county Denver-Aurora-Lakewood, CO Metropolitan Statistical Area had a population of 2,963,821 at the 2020 United States census, making it the 19th most populous U.S. metropolitan statistical area. The 12-county Denver-Aurora, CO Combined Statistical Area had a population of 3,623,560 at the 2020 United States census, making it the 17th most populous U.S. primary statistical area. Denver is the most populous city of the 18-county Front Range Urban Corridor, an oblong urban region stretching across two states with a population of 5,055,344 at the 2020 United States Census. Its metropolitan area is the most populous metropolitan area within a 560-mile (900 km) radius and the second most populous city in the Mountain West after Phoenix, Arizona. In 2016, it was named the best place to live in the United States by U.S. News & World Report.

Jingbian County, which belongs to Yulin City, Shaanxi Province, is located in the north of Shaanxi Province, southwest of Yulin City, adjacent to Wushen Banner and Etok Banner in Inner Mongolia Autonomous region in the north, Zichang County, Ansai District, Zhidan County and Wuqi County in Yan'an City in the south, and adjoining Hengshan County and Dingbian County in the east and west. It is between 108 °17 miles east longitude 109 °20 'and 36 °58 miles north latitude 38 °03', with a total area of 5088 square kilometers. The history of Jingbian is known as "Xiazhou" and "Shuofang". Yu Wenkai, a great architect of the Sui Dynasty, planned, designed and presided over the construction of Daxing City (Chang'an City in Tang Dynasty), which became an example of urban construction in later generations. The site of Tongwancheng, the capital of the Great Xia Kingdom, is the only capital site left over by the Huns in human history. In 24 (1935), Jingbian County of the Communist Party of China
Travel Notes In Jingbian County