On the very summit of this tor is a ruined monument which I am not sure of - is it a cairn, or a round hut? The overall shape is circular, and if it were all covered in stones would be a straightforward cairn, but as it stands today, the entrance is via a clockwise curving passage around about one third or so of its south?west? - (sorry, didn't have my compass) perimeter, leading into the circular interior. A bit like a spiral, or horizontal snail shell, or a squashed figure '6''s, or '9''s mirror-image.
Next time I go up there I will take a piccy.
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