Man-made underground passage in Derrymaclavlode

In pasture, on a knoll surrounded by bog in the valley of the Clydagh River. In the 1930s Capt. D. B. O'Connell described an opening '2 feet 6 inches square' [0.76m square], flanked by two stones, which led into a stone-built chamber '14ft [4.27m]...4ft [1.22m] wide & 3 ft 6 in [1.06m] high' here (SMR file). A series of grass-covered depressions, extending for a distance of c. 11m ENE-WSW, mark the location of this Man-made underground passage. Openings in the bases of two of the depressions (D c. 0.8m) reveal stone slabs, some of which are displaced, probably roof lintels of the Man-made underground passage. Another depression with an opening (diam. 0.9m; D 0.75m), 4m to the SSW, suggests that the Man-made underground passage extends in that direction. (Waddell 1970, 17) Compiled by: Elizabeth Byrne, Ursula Egan and Sheila Ronan, Archaeological Survey Unit, University College, Cork. Date of upload: 31 January 2011