• Tucson
  • Duyun City

Tucson (/ˈtuːsɒn, tuːˈsɒn/; Spanish: Tucson, O'odham: Cuk-Ṣon) is a city in and the county seat of Pima County, Arizona, United States, and is home to the University of Arizona. It is the second largest city in Arizona behind Phoenix, with a population of 542,629 in the 2020 United States census, while the population of the entire Tucson metropolitan statistical area (MSA) is 1,043,433. The Tucson MSA forms part of the larger Tucson-Nogales combined statistical area (CSA). Both Tucson and Phoenix anchor the Arizona Sun Corridor. The city is 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U.S.–Mexico border. Tucson is the 34th largest city and the 53rd largest metropolitan area in the United States (2014).

Major incorporated suburbs of Tucson include Oro Valley and Marana northwest of the city, Sahuarita south of the city, and South Tucson in an enclave south of downtown. Communities in the vicinity of Tucson (some within or overlapping the city limits) include Casas Adobes, Catalina Foothills, Flowing Wells, Midvale Park, Tanque Verde, Tortolita, and Vail. Towns outside the Tucson metro area include Benson to the southeast, Catalina and Oracle to the north, and Green Valley to the south.

Tucson was founded as a military fort by the Spanish when Hugo O'Conor authorized the construction of Presidio San Agustín del Tucsón in 1775. It was included in the state of Sonora after Mexico gained independence from the Spanish Empire in 1821. In 1853, the United States acquired a 29,670 square miles (76,840 km2) region of present-day southern Arizona and southwestern New Mexico from Mexico under the Gadsden Purchase. Tucson served as the capital of the Arizona Territory from 1867 to 1877. Tucson was Arizona's largest city by population during the territorial period and early statehood, until it was surpassed by Phoenix by 1920. Nevertheless, population growth remained strong during the late 20th century. In 2017, Tucson was the first American city to be designated a "City of Gastronomy" by UNESCO.

Duyun is referred to as "uniform" for short. The political, economic and cultural center of southern Guizhou Province, an important transportation hub in southwest China, one of the five major city centers of the Central Guizhou Economic Zone, and the prefecture-level administrative capital of Qiannan Buyi and Miao Autonomous Prefecture. The total area is 2274 square kilometers, with a total population of 490000 (2015). There are 33 ethnic minorities, including Buyi, Miao, Shui and Yao, with Buyi ethnic minorities accounting for 67.08% of the total population. The city has jurisdiction over 1 provincial economic development zone, 5 offices, 4 towns and 1 township (including 1 Shui Autonomous Township). The total area of the urban built-up area is 68 square kilometers (2016), with an urban population of 350000 (including floating population). Duyun City is located on the bank of the Jianjiang River, where the nine streams return to one. Many rivers converge into the source of the Yuanjiang River and pass through the city. Bea
Travel Notes In Duyun City