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.
Shaoshan City, which belongs to Xiangtan City, Hunan Province, is located in the hilly area of central and southern China, east-east of central Hunan Province. Shaoshan is located to the west of Xiangtan City, adjoining Mashan Township, Zhushiqiao Township and Sanxianao Township in Ningxiang City to the north and east, Lianghu Township and Nanzhushan Town in Xiangtan County to the southeast, Longdong Township, Baitian Town and Jinshi Town in Xiangxiang City to the south, and Baitian Town and Jinshi Town in Xiangxiang City to the west. Jurisdiction Qingxi Town, Yintian Town 2 towns, Shaoshan Township, Yanglin Township 2 townships, Shaoshan Municipal Government in Qingxi Town. Shaoshan is the hometown of Mao Zedong, the great leader of all ethnic groups in China, and also the place where he lived, studied, worked and engaged in revolutionary activities when he was a teenager. It is a national famous revolutionary memorial, a national patriotic education base, a national key scenic spot, and an excellent tourist city in China. 2016, Quan