• Tucson
  • Chongchuan District

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.

Chongchuan District, which belongs to Nantong City, Jiangsu Province, is located in the middle of Jiangsu Province, the north bank of the Yangtze River Estuary, and is the resident of Nantong Municipal Party Committee and Municipal Government. The total area is 215 square kilometers. In 2018, Chongchuan District has jurisdiction over 10 streets and another development zone with a resident population of 718900, with a regional gross domestic product (GDP) of 81.951 billion yuan, of which the added value of the primary industry is 6 million yuan, the secondary industry is 19.526 billion yuan, the tertiary industry is 62.419 billion yuan, the tertiary industrial structure is 0.015, 23.8, and 76.2, and the per capita GDP (calculated by resident population) is 114,350 yuan. It translates to US $17285 at the average annual exchange rate. Chongchuan District has two scenic spots with one mountain and one water. One mountain is the country 4A
Airport In Chongchuan District - Nantong Xingdong International Airport
Nantong Xingdong International Airport (Nantong Xingdong International Airport, IATA: NTG, ICAO: ZSNT), located in Tongzhou District, Nantong City, Jiangsu Province, China, is 10 kilometers away from the city center. It is a 4E-level civilian international airport and the first in Jiangsu Province. A civil transport airport solely used by civil aviation   , is also the auxiliary airport of Shanghai International Aviation Hub   .
Nantong Xingdong International Airport was officially completed on August 24, 1993 and named Nantong Xingdong Airport; it was renamed Nantong Xingdong International Airport on July 22, 2016   ;The first phase of reconstruction and expansion was completed in April 2012; the second phase of reconstruction and expansion was completed on August 18, 2019    .
As of August 2019, Nantong Xingdong International Airport has two terminals, namely T2 (suspended) and T3 (domestic and international in China), with a total area of ​​67,000 square meters; there is a runway with a length of 3,400 meters; 34 parking spaces   . As of March 2019, Nantong Xingdong International Airport has 37 domestic and international navigation cities   .
In 2019, the passenger throughput of Nantong Xingdong International Airport was 3.4844 million passengers, a year-on-year increase of 25.7%; the cargo and mail throughput was 42,200 tons, a year-on-year decrease of 1.7%; the number of takeoffs and landings was 34,500, a year-on-year increase of 2.4%; 51st, 42nd, 70th   .
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