《徐霞客游记·滇游日记二十一》
又往南二里，有下陷很深的枯涧，是雪山东南之溪往南流入中海的河道。
又南二里，有枯涧嵌地甚深，乃雪山东南之溪，南注中海者。
Two li to the south, there was a collapsed, very deep dry stream. It was the channel of the stream from the southeast of Mount Snow, which flowed south into the Zhonghai Sea.