《徐霞客游记·滇游日记三十九》
自第一层平地上去，全是屏风样高险的山峰，深深的林木，密蔽悬阻，从无人迹。
自第一坪而上，皆危嶂深木，蒙翳悬阻，曾无人迹。
From the first floor up, all is a row of high and dangerous peaks, with deep forests, densely covering and blocking, and no one there.