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.
Guangxi Zhuang Autonomous region, referred to as "Gui", is the provincial administrative region of the people's Republic of China, located in South China, Guangxi is bounded by 20 °54 degrees north latitude, 26 °24 degrees north latitude, 104 °28 degrees east longitude, 112 °04 'east longitude, Guangdong, south by Beibu Gulf and across the sea from Hainan, adjacent to Yunnan in the west, Hunan in the northeast, Guizhou in the northwest, and Vietnam in the southwest. Guangxi has a land area of 237600 square kilometers and a sea area of about 40, 000 square kilometers. Guangxi is located in the southeast edge of the Yunnan-Guizhou Plateau in the second ladder of Chinese topography, in the west of Liangguang hills, high in the northwest and low in the southeast, tilting from the northwest to the southeast. Geomorphology is generally composed of six categories: mountains, hills, platforms, plains, stone mountains and water surfaces. Guangxi belongs to subtropical monsoon climate and tropical monsoon climate.