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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.

Pingliang, prefecture-level city of Gansu province. Located in the east of Gansu Province, the eastern foot of Liupan Mountain and the upper reaches of Jinghe River, it is the geometric center of Shaanxi-Gansu-Ningxia "Golden Triangle", across Longshan (Guanshan), east of Xianyang, Shaanxi, west of Dingxi and Baiyin of Gansu, south of Baoji of Shaanxi and Tianshui of Gansu, and adjacent to Guyuan of Ningxia and Qingyang of Gansu to the north. Pingliang is an important animal husbandry base and fur distribution center in northwest China, and the main agricultural and forestry product production base and animal husbandry in Gansu Province. Pingliang, known as "Longshang dry Wharf", is an important city that must pass through the ancient "Silk Road". It is historically known as "the first city of Chang'an in the west". Since ancient times, Pingliang has been an important town for the barrier of the three Qin dynasties and the control of Wuyuan. It is a "must-contend place for soldiers" and a traditional commodity distribution center in Longdong. The traffic and military focal point of the Central Plains leading to the western region and the eastern end of the ancient Silk Road, not only in the northwest region.
Travel Notes In Pingliang