《徐霞客游记·滇游日记四》
多次登冈穿洼，三里，有座石峰突立在峡谷正中，犹如一夫当关的标志，从石峰北面越过山脊往下走。
屡陟冈洼，三里，有石峰踞峡之中，为当关之标，由其北逾脊而下。
After climbing up the hills and going down the valleys several times, there is a stone peak that stands out in the middle of the canyon after three miles, like the sign of one man guarding the pass, from the north of the stone peak cross over a mountain ridge and walk down.