《水经注·卷二十一》
按《山海经》，没有提到衡山有水，但醛水往东流经唐山下，就是高凤隐居过的山。
依《山海经》，不言有水。然醴水东流，历唐山下，即高凤所隐之山也。
According to "Shan Hai Jing", there is no mention of water in Hengshan, but the aldehyde water flows eastward through Tangxia Mountain, which is the mountain where Gao Feng lived in seclusion.