《徐霞客游记·滇游日记二十九》
到了它的南边，朝西俯瞰峡底，一线浑浊的流水绕向东南流去，嵌在下方非常深，隔着江流，危崖高险陡峻，上边截断云雾而下面浸泡着江流的山，就是罗崛山了。澜沧江从吐蕃的磋和哥甸往南流，经过丽江府兰州的西面，大理府云龙州的东面，流到此山之下，又向东南流经顺宁府云州的东面，往南下流过威远、车里，称为挝龙江，流入交趾到海中。《一统志》认为，赵州白崖睑的礼社江，流到楚雄府的定边县汇合澜沧江，流入元江府称为元江。
《一统志》谓赵州白厓睑又作 敛 、 脸 等，在唐代为一种政区设置，后世则存其说法，但含义并不指一种政区，而是指一片平坝地区，似在 甸 字相近礼社江，至楚雄定边县合澜沧，入元江府，为元江。
Arriving at its south side, looking west to the bottom of the canyon, a line of muddy water flowing to the southeast was embedded in the bottom very deeply. Across the river, the cliffs were steep and dangerous, and the mountain that cut off the clouds and soaked the river below was Luojue Mountain. The Lancang River flowed south from Tuofan's Cuohuo brothers, passed through the west of Lijiang Prefecture's Lanzhou, the east of Dali Prefecture's Yunlong Prefecture, and flowed to the bottom of this mountain. Then it flowed to the southeast through the east of Shun'ning Prefecture's Yuncheng, and flowed south through Wei'yuan and Cheli to be known as Laolong River, and flowed into Jiaozhi and into the sea. According to the "Yi Tongzhi", the Liceshe River in Zhaozhou Baiya Linyan flowed into the Lancang River in Dingbian County of Chuxiong Prefecture, and flowed into Yuanjiang Prefecture and was named Yuanjiang.