《徐霞客游记·滇游日记二十八》
这条山涧从东北的山麓流出来，下嵌得很深，从苍山的后面到此地，又往西北延伸了一里了。
其涧自东北山麓出，下嵌甚深，苍山之后至此，又西北一里矣。
This mountain stream flowed out of the northeastern foothills, which was deeply embedded. From behind Cangshan to this place, it extended another li to the northwest.