《水经注·卷三》
河水往•南流进祯陵县西北，沿着胡山，流经沙南县东北，从二县的两山之间流出。
河水南入桢陵县西北，缘胡山，历沙南县东北，两山、二县之间而出。
The river runs southward to the northwest of Zhenling County, flowing along Husha Mountain, and goes through the northeast of Shanan County, and flows out from between the two mountains of the two counties.