Nine souterrains have been recorded in excavation at the passage tomb complex. They are associated with the early medieval open settlement (ME019-030060-) and are placed largely on the sides and summit of the great mound. This is Souterrain No. 6 and it was structurally attached to the NW corner of medieval house 12 on the side of the mound at its S edge. It consisted of a passage (total L 13.9m; Wth c. 0.75m) with 18 surviving lintels, and only 2 of these were in place. It ran W (L 2.2m), SW (L 3.7m) and then W to a circular chamber (diam. 2.5m; max. surviving H 1.2m). The floor of the passage sloped down steeply (H 2.5m) over its length with 2 steps in its course. It is not conserved. (Eogan 2012, 142-4) True location: ITM (699612, 733419) Compiled by: Michael Moore Date of upload: 06 November 2013 Amended: 17 September, 2020 See the attached illustrations: _1 Early medieval features, from Knowth 5, Fig. 4:1 _2 Souterrain plan, from Knowth 5, Fig. 4:36

Description Source: National Monuments Service, Department of Arts, Heritage Regional, Rural and Gaeltacht Affairs.