Chongqing, referred to as "Chongqing" for short, is a provincial administrative region, municipality directly under the Central Government, national central city and megacity in People's Republic of China (PRC), one of the important national central cities approved by the State Council, an economic center in the upper reaches of the Yangtze River, an important advanced manufacturing center in China, a financial center in the west, an international comprehensive transportation hub and an international gateway hub in the west. Located in the southwest of China, north latitude1051'-10165438', north latitude 2810'-32/kloc-. It is famous not only for Jiangcheng, Wudu and Qiaocheng, but also for its mountain city. By the end of 20021,it had jurisdiction over 26 districts, 8 counties and 4 autonomous counties, with a total area of 82,400 square kilometers and a permanent population of 32124,300.