• Mesa
  • Yongan

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.

Yongan (English: Yongan) (Yong'an County of Yanping Prefecture and Ningyang County of Zhangzhou Prefecture) is nicknamed "Yancheng". Yongan City, which belongs to Sanming City, Fujian Province, is in charge of county-level cities in Sanming City. It is located in the central and western part of Fujian Province, between 116 °56 miles east longitude and 117 °47 miles east longitude and 25 °33 miles north latitude 26 °12'. It is bordered by Datian County to the east, Liancheng County to the west, Zhangping City and Silla District to the south, and Mingxi County and Sanyuan District to the north. The city center is 280 kilometers away from Fuzhou and 290 kilometers away from Xiamen. In 2013, Yong'an has a total area of 2942 square kilometers and has jurisdiction over 4 streets, 8 towns, 2 townships and 1 nationality township. In 2017, the gross domestic product (GDP) of the region was 38.419 billion yuan, an increase of 7.6 percent over the previous year at comparable prices. Have been awarded
Airport In Yongan - Sanming Sha County Airport
Sanming Shaxian Airport (Sanming Shaxian Airport, IATA: SQJ, ICAO: ZSSM), located in the North District of Jinguyuan, Shaxian District, Sanming City, Fujian Province, China, about 32 kilometers away from the center of Sanming, is a 4C-level civil transport airport   .
Sanming Shaxian Airport was officially completed and opened to navigation on March 7, 2016; it was named Sanming Shaxian Airport   .
According to information on the airport's official website in June 2019, Sanming Shaxian Airport has a terminal building of T1 (domestic in China) with a total area of ​​11,700 square meters; there is a runway with a length of 2,600 meters and 5 parking spaces   . As of October 2020, 9 domestic cities in China have been opened.  
In 2020, due to the impact of the global epidemic, the passenger throughput of Sanming Shaxian Airport was 249,700, a year-on-year decrease of 2.3%; the cargo and mail throughput was 1,000 tons, a year-on-year increase of 259.2%; the number of takeoffs and landings was 3,000, a year-on-year increase of 5.1% %; respectively ranked 177th, 159th and 190th in China   .
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