Man-made underground passage in Marshes Upper

Discovered during the development of playing pitches at Dundalk Institute of Technology (Excavation Licence No.02E0008). The accessible portion was 28m in overall length. Runs S to N for some 10m and then turns at right angles and runs E for c. 7m before running to SE. At the latter extremity a rectangular beehive chamber opens to the N. Floor levels vary along the course of the Man-made underground passage. Two drop holes are present at one of which there was a removable stone trap-door. Covered and preserved in situ. (Mossop 2002, 12 and 41; Mossop 2004, 375-6) References: Mossop, M. 2002 Archaeological monitoring and investigations, Dundalk Institute of Technology, County Louth. Unpublished archaeological report. National Monuments Section, Department of Arts, Heritage and the Gaeltacht, Dublin Mossop, M. 2004 Marshes Upper, Dundalk. In I. Bennett (ed.), Excavations 2002: summary accounts of archaeological excavations in Ireland, 375-8 (No. 1335). Bray. Wordwell. Compiled by: Claire Breen Date of upload: 01 December 2011