• Tucson
  • Ningjiang 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.

Ningjiang District is located in the central and western part of Jilin Province, the northern end of Songyuan City and the hinterland of Songnen Plain. Ningjiang District is located in the central and western part of Jilin Province, the northern end of Songyuan City, and the hinterland of Songnen Plain. It is longitude from east to west, east to west, Qianguo county to the south, and Zhaoyuan county in Heilongjiang Province to the north. It is 38 kilometers wide from east to west and 50 kilometers from north to south. Mingshen, Ketian, Changbai and other provincial trunk highways run through the east, west, north and south, reaching Changchun in 90 minutes, Harbin in 100 minutes and Daqing in 60 minutes. From the natural port to Liujiazi, to the east to Jilin City, to the west through the Nenjiang River to Qiqihar City, to the north through the lower reaches of the Songhua River to Harbin and Jiamusi ports, and
Airport In Ningjiang District - Songyuan Chagan Lake Airport
Songyuan Chaganhu Airport (Songyuan Chaganhu Airport, IATA: YSQ, ICAO: ZYSQ), located in Chaganhu Village, Waiqi Ranch, Baodian Township, Chaganhu Tourism Economic Development Zone, Qianguoerluosi Mongolian Autonomous County, Songyuan City, Jilin Province, China, northeast It is 31.5 kilometers away from the center of Songyuan and 29.5 kilometers away from the county seat of Qiangolluosi Mongolian Autonomous County. It is a 4C-level Chinese domestic tourism feeder airport   .
On June 20, 2015, Songyuan Chagan Lake Airport officially started construction; on May 22, 2017, Songyuan Chagan Lake Airport successfully completed the school flight   ; On October 29, 2017, Songyuan Chagan Lake Airport was officially opened to navigation   .
As of July 2019, Songyuan Chagan Lake Airport has a one-story and a half-style process terminal building with an area of ​​6,000 square meters, with 2 boarding bridges; 5 seats on the station apron, including 1 class B Seats, 4 C-class seats; runway 2,500 meters long, 45 meters wide; can meet the annual passenger throughput of 400,000 passengers, 2,000 tons of cargo and mail throughput, and 29,322 aircraft takeoffs and landings     .
In 2019, Songyuan Chagan Lake Airport handled a total of 152,441 passengers, a year-on-year decrease of 4.4%, ranking 204th in the country; cargo and mail throughput was 58.1 tons, a year-on-year increase of 6.1%, ranking 195th in the country; flight movements were 1.8286 million vehicles, a year-on-year decrease of 2.4%, ranking 99th in the country   .
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