Towering among the mountains and river valleys, Chongqing is also called "mountain city". To the west, it is Daba Mountain; to the east, it is Wuling Mountain; to the south, it is Dalou Mountain. Yangtze River, Jialing River, Wu River and Pei River pass through this city. The world-renowned Three Gorges of Yangtze River are located at the border of Chongqing and Hubei province.