长江三峡位于川鄂交界。由大巴山、巫山等一系列东北—西南走向的褶皱山脉经长江自西向东切割作用而成。全峡西起四川奉节,东至湖北宜昌,共长240公里。由四川奉节经白帝城到巫山称翟塘峡;自巫山到巴东称巫峡;从秭归的香溪镇抵宜昌的南津关为西陵峡,简称长江三峡。峡谷净长90公里,沿江悬岩峭壁,山峰一般高出江面500—1000米,江面最窄处不过100米,最大流速 Yangtze River Three Gorges at the junction of Sichuan and Hubei. From Dabashan, Wushan and a series of northeast - southwestern fold mountains by the Yangtze River from west to east cut from. The entire west west of Sichuan Fengjie, Yichang, Hubei Province, a total length of 240 km. From Fengjie in Sichuan Province via Baidici to Wushan, it is called Zitangxia; it is called Wuxia Gorge from Wushan to Badong; and from Xigui to Yichang, it is Xiling Gorge, referred to as the Three Gorges of the Yangtze River. Net long 90 km canyon cliffs along the cliff, the peak is generally higher than the river 500-1000 meters, the narrowest of the river, but 100 meters, the maximum velocity