Man-made underground passage in Cloonaderavally

Situated on the NE side of a low ridge in undulating pasture. Wood-Martin (1882, 113-4) recorded a 'subterranean chamber, with several smaller chambers off'. Two adjacent passages have been identified. Both are walled with drystone masonry and roofed with massive lintels. The first (visible L 5-6m; Wth 1.25m; H 0.8m) is aligned E-W and appears to terminate at a wall at its E end. At its W end, at surface level, an area of surface subsidence (L c. 6m N-S; Wth 2.4m) hints that a subsidary passage may extending N at right angles from the main passage. The second passage, which is located a short distance E of the first, is also aligned E-W. At its E end is an area of collapse (L 2m E-W) which opens into a small passage (L c. 3m E-W; Wth c. 1m) that terminates at a stone wall at its W end. There is no obvious link between the two passages but, given their proximity and alignment, it is probable that they are part of the same structure. Compiled by: Patrick F. O'Donovan Date of upload: 19 January 2011