《徐霞客游记·滇游日记七》
其岭南面、北面都高高耸起，高峰夹着它，水流已经往西南流，我以为越过岭脊了，顺着岭下一里，在峡谷中行走。
其岭南北俱起，崇峰夹之，水已西南行，余以为过脊矣，随之下一里，行峡中。
Its ridge was high on the south and north sides, and there were high peaks 夹着 it, and the water was already flowing to the southwest. I thought I had crossed the ridge, and followed it for a mile along the ridge, walking in the canyon.