《徐霞客游记·粤西游日记二十一》
初八日自大水河登上后山进入得州府境内，路应该从山左沿小河往北行，我错从山右的大水河向北走去。一里，大水河折向东去，我于是向西越岭。三里路到罗捷，仍与北来的小河相遇，逆水行，这才走上大道。
三里出罗捷，或作 插 ，有村落在山半。仍与北来小水遇，溯之行，始得大道。
On the 8th, after climbing the mountain from the Big Water River, I entered the territory of the Dezhou Prefecture. The road should have gone north from the left side of the mountain along the small river, but I mistakenly went north from the Big Water River on the right side of the mountain. About a third of a mile farther, the Big Water River turned east, so I turned west and crossed over a ridge. About a mile farther, I reached Luoqie, where I met the small river coming from the north. I followed the river upstream, and finally got onto the main road.