A.D. 1831, January.- Bog, near Geevagh, Co. Sligo.
” After a sudden thaw of snow, the bog between Bloomfield and Geevagh gave way; and a black deluge, carrying with it the contents of 100 acres of bog, took the direction of a small stream, and rolled on with the violence of a torrent, sweeping along heath, timber, mud, and stones, and overwhelming many meadows and arable land. On passing through some boggy land, the flood swept out a wide and deep ravine, and a part of the road leading from Bloomfield to St. James’s Well was completely carried away from below the foundation for the breadth of 200 yards.”

Ref: Lyell, Principles of Geology’ 10th ed., vol. ii., p. 504