• Mesa
  • Tongyu County

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.

Tongyu County, which belongs to Baicheng City, is located in the west of Jilin Province and in the south of Baicheng City. It is located in the eastern part of Horqin grassland. The geographical coordinates are between 120 °02 Mel 123 °30 'east longitude and 45 °16' N latitude, covering an area of 8476 square kilometers. As of October 2018, Tongyu has jurisdiction over 1 provincial economic development zone, 8 towns, 8 townships, 6 state-owned animal husbandry (forest) farms and 172 administrative villages. As of 2018, the total population of Tongyu County is 367000, including Miao, Korean and other ethnic minorities. Tongyu County was founded in the 30th year of Guang Xu of the Qing Dynasty (1904), originally known as Kaitong County, November 1958, merged with the original Zhanyu County, taking the last word of the two counties as "Tongyu County". Tongyu County has a semi-arid continental monsoon climate in the middle temperate zone.
Airport In Tongyu County - Baicheng Chang'an Airport
Baicheng Chang'an Airport (BaiCheng ChangAn Airport, IATA: DBC, ICAO: ZYBA), located in Diaojiatun Airport Road, Taohe Town, Taobei District, Baicheng City, Jilin Province, China, 18.5 kilometers away from the center of Baicheng City in the northwest, is a 4C-level military-civilian regional airport   .
On October 26, 2012, the foundation stone of Baicheng Chang'an Airport was laid; on May 25, 2016, the test flight of Baicheng Chang'an Airport was successful; on March 31, 2017, Baicheng Chang'an Airport was officially open to navigation, and it was implemented for military and civilian use   .
As of February 2021, the terminal area of ​​Baicheng Chang'an Airport is 4,500 square meters, and the parking lot area is 4,000 square meters; there are 1 Class B seat and 3 Class C seats on the civil aviation station; the runway is 2,500 meters long and 45 meters wide ; It can meet the needs of annual passenger throughput of 200,000 passengers, cargo and mail throughput of 700 tons, and annual aircraft take-off and landing of 2,459 sorties      .
In 2020, Baicheng Chang'an Airport completed a total of 73,838 passenger throughput, a year-on-year increase of 13.3%, ranking 211th in the country; cargo and mail throughput was 1.2 tons, a year-on-year increase of 17.4%, ranking 221st in the country; aircraft took off and landed 1,594 sorties, Year-on-year growth of 120.8%, ranking 209th in the country   .
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