According to Margaret Stokes (1882), there was a 'Giant's Grave' at Carn. Her small-scale distribution map places it a short distance SE of Lough Derg. It is not known to what site she was referring, but it may have been the feature named 'St.…
"Now let me at my old antagonist Oral tradition: The chair of Davog lies in the townland of Suidhe Dhabheog (Seeavoge) where in the living rock some impressions of elbows &c are strewn. Davog was a woman, who came to make the turas but she died…
"Returning to the lake shore, another notable landmark there should be considered, Saint Brigid's Chair. It is a large rock, roughly-shaped like a high-backed chair, and its is prominent even among the large boulders surrounding it..."
"To the west of St. Brigid's Chair, and about two furlongs from the shore of the lake, but somewhat further from the chair, is situated on the very summit of a mountain a carn-shaped eminence, on the summit of which is St. Dabheoc's Seat..."