Man-made underground passage in Cahergrillaun

Situated in the N half of the interior of a cashel (CL009-058----), this collapsed Man-made underground passage (L c. 6m E–W) comprises a rough passage (L 3m; Wth 1.2m; D 0.5m) at W, narrowing (Wth 0.8m) into a creep in the centre, which leads to a chamber (L 2.4m; upper Wth 2.5m) at E. Some of the original walling, now moss-covered, survives in situ in the E half of the chamber. Compiled by: Olive Alcock and Conn Herriott Date of upload: 3 February 2022