《徐霞客游记·粤西游日记二十四》
转向西行五里，再转向西北，绕着东岸的危崖行二里，到达北山之下。
转西五里，复转西北，盘东岸危崖二里，抵北山下。
They turned left and headed west for five li, then headed north-west, and having gone two li around the cliffs of the eastern bank, they reached the foot of Beishan Mountain.