《徐霞客游记·楚游日记十一》
开初往上爬时仍是土山，进了山往东朝下走，只听得深谷中水声潺潺。
初升犹土山，既入而东下，但闻水声潺潺在深壑。
The first climb up was on a dirt trail as we entered the mountain towards the east, while still hearing the murmur of water from the deep valley.