Man-made underground passage in Marshes Upper

The following description is derived from both the published 'Archaeological Inventory of County Louth' (Dublin: Stationery Office, 1986) and the 'Archaeological Survey of County Louth' (Dublin: Stationery Office, 1991). In certain instances the entries have been revised and updated in the light of recent research. Date of upload/revision: 17 July 2007 Excavated by M. Gowen in 1982 in advance of construction work. Situated NW of four other excavated Man-made underground passages (LH007-083----, LH007-084----, LH007-085----, LH007-086----), apparently in isolation at the base of a small hillock. The Man-made underground passage consisted of a passage (L 10m, Wth 0.7-0.9m) at the N end of which was a small recess and a chamber (L 4m, Wth 1m) running at right angles to it towards the W.