On the other side of the rock (f) in fig. 9, Plate VII. is an exact circular hole, as is seen in fig. 11, Plate VIII.* which is a South view of the Tor. I found there was no possibility of getting near enough to examine this rock, but I should suppose, from the little channels on the other sides, that there are rock basons on the top.
There are many large rocks scattered about, which must have fallen from the top, where, when they stood erect, filling up every part of this elevated Tor, the effect must have been sublimely striking to the superstitious Britons, who had been taught to venerate those sacred rocks.
That the Druids had fixed upon this hill for the celebration of their religious rites, I think cannot be doubted; it was usual to inclose their places of worship, and here a fence of large rough stones now plainly appears to have surrounded the rocks near the bottom of the hill.
Some druidic imaginings in An Account of the Druidical Remains in Derbyshire. In a Letter to the Right Honourable Frederick Montague, FAS. By Hayman Rooke, Esq. FAS. In Archaeologia v12 (1796).
I cannot see (f) in fig. 9 here but I guess it’s the one right at the top.
(*seems to be labeled no.12, but that is my bad cropping of the picture.)