Possibly the swiftest route to your roots.
Irish genealogy website directory.
www.from-ireland.net/history/Bog-Bursts%3A-By-County
Description:
A.D. 1824, December 22.-Bog of Ballywindelland, Colerlaine. A portion of this bog containing 80 or 100 acres gave way and passed into an adjoining valley: it gradually advanced on the firm land, during theday, at the rate of 2 feet per minute.