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.
Fugu County is located in the northernmost part of Shaanxi Province, bordering Qin, Jin and Mongolia, across the river from Hequ County and Baode County of Shanxi Province, bordering Zhungeer Banner and Yijinhuoluo Banner of Inner Mongolia Autonomous region in the north, and adjacent to Shenmu City in the southwest. It is known as the "three provinces of chicken singing". The comprehensive competitiveness of county economy ranks among the top 100 in the country and the top 10 in the west. National health county, national civilized county, provincial private economy transformation and upgrading experimental area, China's top 100 industrial counties, national advanced financial ecological counties, advanced counties with the most investment potential in China, provincial garden counties, provincial environmental protection model counties, national advanced counties in scientific and technological progress, top 10 low-carbon ecological counties in China, advanced counties in national ecological civilization, health counties in Shaanxi Province, Ping'an County in Shaanxi Province. The top ten counties in Shaanxi Province are in the top three, and so on. Fugu is rich in natural resources and is at the national level