Man-made underground passage

In pasture, immediately N of townland boundary with Clovers. Possible Man-made underground passage in the interior of a cliff-edge fort (LI056-015001-) with a standing stone (LI056-015002-) to immediate W. In 1931 the monument was described as; ‘two moats or lisses with Man-made underground passages’ (O’Shaughnessy and Carroll 1931, 69-70). Annotated ‘Man-made underground passage’ on Cassini ed. OSi 6-inch map, not depicted on 1840 ed. OSi 6-inch map or 1897 ed. OSi 25-inch map. No surface remains of levelled monument on Digital Globe orthoimage taken between 2011-2013. Faint trace of D-shaped cropmark of cliff-edge fort on Google Earth orthoimage dated 28/06/2018 but no trace of Man-made underground passage visible. See attached Google Earth orthoimage Compiled by: Caimin O’Brien Date of upload: 2 December 2021