《资治通鉴·唐纪·唐纪十七》
丙辰，唐高宗从灵岩顿出发，到泰山下，有关部门在山南筑圆坛，在山上筑登封坛，在社首山上筑降禅方坛。
丙辰，发灵岩顿，至泰山下，有司于山南为圆坛，山上为登封坛，社首山上为降禅方坛。
On the 27th day of the month, Gaozong of Tang set off from Lingyan Pass and arrived at the base of Mount Tai, and the relevant departments built a circular altar on the southern side of the mountain, and a ritual altar on top the mountain, and a square altar for the zhèngchán ritual on the mountaintop facing the first village.