A reversed river refers to the section of a river that flows towards the elbow of capture after the river-capture process. Its flow direction is opposite to that of the beheaded river. If an existing terrace is present, its dip is opposite to the flow direction of the reversed river. Typical examples are the Yigong Cangbu River and Palong Cangbu River in Yigong National Geopark in Tibet. These two rivers developed along a Palaeozoic rift belt. The Yigong Cangbu River flows southeast, and the Palong River flows northwest. They form a nearly linear channel, and they are sometimes mistaken as a single river system, but geographically they are separate rivers flowing in opposite directions.