Man-made underground passage in Greenan

In the NE quadrant of, and built against, the inner wall of a cashel (SL040-071001-). A dugout L-shaped rock-cut trench (7.3m NW-SE, projecting 3.2m to SW from SE end; max. Wth 2.4m; max. D 0.9m). A number of stones, possibly lintels or orthostats, were noted in the base of the trench. The above description is derived from the published 'Archaeological Inventory of County Sligo' compiled by Ursula Egan, Elizabeth Byrne, Mary Sleeman with Sheila Ronan and Connie Murphy (Dublin Stationery Office, 2005). Date of upload: 18 January 2008