Man-made underground passage in Ballinvally,killeigh,millbrook

Local tradition of a tunnel beneath the abbey (O. Davies 1942, ITA Survey) in the vicinity of the Franciscan Friary which may have been confused with either a silted up box drain or mill race associated with the friary or drainage works associated with the friary (Byrne 1979, 15). The above description is derived from the published 'Archaeological Inventory of County Offaly' (Dublin: Stationery Office, 1997). In certain instances the entries have been revised and updated in the light of recent research. Date of upload: 23 May 2011