• Mesa
  • Ningnan 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.

Ningnan County belongs to Liangshan Yi Autonomous Prefecture, located in the south and east of Liangshan Yi Autonomous Prefecture, Sichuan Province, facing the Jinsha River and Qiaojia County in Yunnan Province across the river. Ningnan County, with a total area of 1667 square kilometers, has jurisdiction over 6 towns, 19 townships, 124 villages and 819 village groups, with a total population of 189000 (2014). It is a mountainous agricultural county dominated by the Han nationality, Yi, Buyi, Hui, Tibet, Mongolia and other ethnic groups. In September 2016, the State Council approved Ningnan County as a national key ecological functional area.
Travel Guides In Ningnan County
Travel Notes In Ningnan County
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