Back at the Yellow River gorge, water begins to pile up behind the landslide dam.
回到黄河峡谷,水开始在滑坡坝后堆积。
英语百科
Landslide dam 堰塞湖
A landslide dam, debris dam, or barrier lake is a natural damming of a river by some kind of mass wasting: landslide, debris flow, rock avalanche or volcano. If it is caused by earthquake, it may also be called a quake lake. Some landslide dams are as high as the largest existing artificial dam.