"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..."
"On the northern shore of the lake, near where the River Derg debouches, may be seen a beautiful white strand. Smoothly-rounded pebbles, small shells and Crustacea, such as may be seen on the sea-shore, are here to be met with..."
A description of the lake taken from O'Connor's account of an 1836 story in the Dublin Penny Journal Count Raymond de Perilleaux's 1397 journey to the Purgatory
"Lough Derg has certainly been well chosen as a spot of religious penitence and seclusion, for the character of its scenery harmonises well with such a feeling; it is that of wild and gloomy loneliness."
