Abstract: Furong Gorge in Changshan National Geopark is a spectacular section with a special alluvial terrace. Based on the sediment characteristics, the landform and the datings on some sediment samples, this paper analyzed the process, the time and the reason of the river piracy which caused such phenomena. The result showed it was the Fangcun River that pirated the Furong River which originally flowed into Jinyuan River. This geomorphologic event may be the result of the movement of the faults with NE and NNW stikes in the region, which took place during 52.38~33.6 ka B.P.

Key words: national geopark, Furong Gorge, river piracy, Changshan County, national geopark, Furong Gorge, river piracy