《水经注·卷三》
水往西南流，穿过峡谷，流过魏帝行宫东边，世人称为阿计头殿。
其水西南流，历谷，径魏帝行宫东。世谓之阿计头殿。
The water flows southwest, passing through a canyon, and passing by the east of Wei Emperor's palace, which is called Aji Head Hall by the world.