《水经注·卷十七》
瓦亭水又往西南流，与略阳川水汇合。略阳川水发源于陇山香谷西，往西流，右边有单溪往西注入，左边有阁川水流进来。
其水又西南与略阳川水合，水出陇山香谷西，西流，右则单溪西注，左则阁川水入焉。
The water of Wating flows southwest again, merging with the water of Leyangchuan. The Leyangchuan water originates from the west of Xianggu in Longshan, flows westward, with Danxi entering from the west and閣川 water flowing in from the left.