《史记·十二本纪·孝武本纪》
当初，皇帝在泰山举行封禅大典，泰山脚下的东北方有古时的明堂遗址，所处位置险峭而不开阔。
初，天子封泰山，泰山东北址古时有明堂处，处险不敞。
At the foot of Mount Tai, to the northeast, in the ancient Mingtang Ruins, there was a dangerous and cramped location.