《徐霞客游记·滇游日记六》
又转向南、翻越山冈后往西下，一共走一里，穿过一道峡谷，想来就是一碗冲往西排泄水流的峡谷。
又南转逾冈西下，共一里，度一峡，想即一碗冲西向泄流之峡也。
Then, I turned south. After crossing the hilly area, I went west another li, and passed through a canyon, which I think is the canyon that carries water from the Yiwangchong area to the west.