《徐霞客游记·滇游日记十二》
路转到其狭窄的山坳间，石峰陡峭不能落脚，上面凿有石孔攀登，其影倒映在奔腾的急流之间，犹如落入深远的潭底。
路转其夹坳间，石削不容趾，凿孔悬之，影倒奔湍间，犹窅ｙｏ深远然九渊比喻其水很深也。
The road turned into the narrow valley, where the stone peaks were so steep that there was no foothold. There were stone holes dug on the peaks for climbing, and their shadows were reflected in the raging torrent, as if falling into the deep pools.