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.
Tai'an City, a prefecture-level city of Shandong Province, is located in the middle of Shandong Province, with the provincial capital Jinan in the north, Jining in the south, Linyi in the east and the Yellow River in the west, with a total area of 7761 square kilometers. It is 66.8 kilometers from the provincial capital Jinan to the north and 74.6 kilometers to Qufu, the holy city of three holes in the south. Taian gets its name from Mount Tai. "Mount Tai is safe all over the world", which means that the country is peaceful and the people are safe. The city is located at the foot of Mount Tai, built according to the mountain, and the mountain city is one. Mount Tai in the territory is a national key scenic spot, with the reputation of "the first of the five mountains" and "the first mountain in the world". It is a world natural and cultural heritage. Tai'an was listed as the first batch of tourist cities open to the outside world by the State Council in 1982. It is one of the central cities in central Shandong, an excellent tourist city in China, and a famous historical and cultural city in China. 2018 CCTV Spring Festival Gala venue for the year of the Dog