• Mesa
  • Wannian 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.

Wannian County, under the jurisdiction of Shangrao City, Jiangxi Province, is located in the northeast of Jiangxi Province and the southeast bank of Poyang Lake. It is bordered by Yiyang in the east, Yugan in the west, Yingtan City in the south and Poyang and Leping in the north. Geomorphological features "six mountains, one water and two fields, one road and manor". Wannian County has jurisdiction over 6 towns, 6 townships and 2 management committees, with a population of 435700 (2017). The total area is 1140.76 square kilometers. In 2016, the GDP of Wannian County was 12.058 billion yuan, the added value of the primary industry was 1.361 billion yuan, the added value of the secondary industry was 6.807 billion yuan, the added value of the tertiary industry was 3.89 billion yuan, and the tertiary industrial structure was 11.3, 56.4, 32.3. Wannian County has been awarded Jiangxi provincial health city, Jiangxi provincial garden city, Jiangxi provincial double.
Airport In Wannian County - Shangrao Sanqingshan Airport
Shangrao Sanqingshan Airport (Shangrao Sanqingshan Airport, IATA: SQD, ICAO: ZSSR), located in Houmentang at the junction of Zunqiao Township, Zaotou Town, Guangxin District, Shangrao City, Jiangxi Province, and Maojialing, Xinzhou District, Shangrao City, from the center of Shangrao With a straight-line distance of 8 kilometers, it is a 4C-level feeder airport and the seventh civil airport in Jiangxi Province.
Shangrao Sanqingshan Airport was built on July 8, 2012 and officially opened to navigation on May 28, 2017.
According to comprehensive information in May 2017, Shangrao Sanqingshan Airport covers an area of ​​2,243 acres, with a total investment of about 800 million yuan. The runway is 2,400 meters long and 45 meters wide, with 6 seats.  
In 2019, the passenger throughput of Shangrao Sanqingshan Airport was 500,156; the cargo and mail throughput was 153.8 tons; the number of takeoffs and landings was 5,982; ranking 144th, 181st, and 154th in China respectively.  
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