《徐霞客游记·粤西游日记十八》
远远听到河滩水声响如雷，很久才走到，就见高悬回旋的江流变成瀑布，一泻就是数里，这里叫横旋滩。
遥闻滩声如雷，久之始至，则悬流回瀑，一泻数里，是曰横旋滩。
From afar can be heard the thunderous sound of water on the river beach. After a long walk we arrive to see that the high and swirling river becomes a waterfall that plunges for several li. This is Hengxuan Shoal.