《山海经·山经·中山经》
郁水从这座山顶上发源，潜流到山下，水中有很多磨石。
郁水出于其上，潜于其下，其中多砥砺。
Yushui River originates from the top of this mountain, flows underground to the foot of the mountain, and there are many grindstones in the water.