Passage entrance facade.
The "business end" of the cairn, the entrance is flanked by two kerb stones set
radially to the circle, and these are flanked in turn by the
tallest and largest kerbs, both of which have particularly flat outer faces.
Unfortunately a tree has chosen to grow exactly in the centre of
passage, just to the left of this, above the western entrance kerb can be
glimpsed the only surviving passage stone.