• Mesa
  • Yichang

A mesa is an isolated, flat-topped elevation, ridge or hill, which is bounded from all sides by steep escarpments and stands distinctly above a surrounding plain. Mesas characteristically consist of flat-lying soft sedimentary rocks capped by a more resistant layer or layers of harder rock, e.g. shales overlain by sandstones. The resistant layer acts as a caprock that forms the flat summit of a mesa. The caprock can consist of either sedimentary rocks such as sandstone and limestone; dissected lava flows; or a deeply eroded duricrust. Unlike plateau, whose usage does not imply horizontal layers of bedrock, e.g. Tibetan Plateau, the term mesa applies exclusively to the landforms built of flat-lying strata. Instead, flat-topped plateaus are specifically known as tablelands.

Yichang, known as Yiling in ancient times, is a prefecture-level city in Hubei Province. Located in the southwest of Hubei Province and the boundary of the upper and middle reaches of the Yangtze River, it has a history of more than 2000. The name of "Yichang" began in the Eastern Jin Dynasty, the establishment of the city began at the beginning of liberation, and the prefecture-level city was established in 1992. The geographical environment of Yichang is complex and diverse, the topography is more complex, and there is a great difference in height; it is located in the transitional zone between the middle subtropics and the north subtropics, and belongs to the subtropical monsoon humid climate. In 2017, the city has a total area of 21227 square kilometers and has jurisdiction over five districts, three cities and five counties. In 2017, the permanent population is 4.1356 million. Built on the Yangtze River, Yichang is a regional central city in central China, a deputy central city in Hubei Province, an important member of the urban agglomeration in the middle reaches of the Yangtze River, with Hanyi Expressway, Hanyi High Speed Railway, Jiaoliu Railway, 31.
Airport In Yichang - Yichang Three Gorges Airport
Yichang Sanxia Airport (Yichang Sanxia Airport, IATA: YIH, ICAO: ZHYC) is located at the junction of Yiting District, Yiling District and Zhijiang City, Yichang City, Hubei Province, China, 26 kilometers away from the city center and 55 kilometers away from the Three Gorges Dam   , is a 4D-level international tourist feeder airport, an important supporting project of the Three Gorges Project, and an international hub airport in the Three Gorges region   .
Yichang Three Gorges Airport was approved by the State Council and the Central Military Commission on January 18, 1993.   ;The construction officially started in September 1994, and passed the national completion inspection in October 1996. On December 28, 1996, it obtained the airport use permit and officially opened to air.   ; On June 23, 2022, the airport T2 terminal will be opened   .
According to the official website of the airport in February 2022, the terminal area of ​​Yichang Three Gorges Airport is 14,816 square meters, the area of ​​the air cargo terminal is 96 square meters, and the civil aviation station has 21 aircraft seats; the runway is 3,200 meters long and 45 meters wide   .  
In 2018, Yichang Three Gorges Airport handled a total of 2,948,700 passengers, 24,800 aircraft movements, and 16,900 tons of cargo and mail, a year-on-year increase of 31.41%, 27.17%, and 25.42% respectively.  
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