Knowth cemetery, Tomb 18: This tomb is located c. 14m ENE of the kerb of the great mound, Tomb 1C, close to the entrance of the E tomb, and it is just SE of Tomb 17. This mound, of unknown dimensions, impinges on that of Tomb 17, but it is thought that this is the earlier and it was built on the original humus. It is represented by five kerbstones and two sockets with a partial setting of stones inside the kerb S-SW. The scant remains of a cruciform passage tomb (total L c. 7.6m) opening at the S is represented by 15 sockets, four with the stumps of orthostats still present. There were burial deposits in the area of the E and W recesses, that in the W being covered by a flagstone that had been trimmed at the edge like a stone basin. Two adults in a cremated state together with an unburned adult and infant were in the left-hand or W recess, and there was one cremated adult in the E recess (Buckley et al. 2017, 314-15). Above the basin was a deposit with charcoal, sherds of a flat-based pottery vessel that is Grooved ware, flints, and part of a human skull. One orthostat from the end recess bears megalithic art on 3 faces, and the motifs include a spiral, parallel lines, circles and shallow cupmarks. A single date of 3328-2928 cal. BC was derived from under the floorstone in the west recess which must be unconnected with the Grooved ware above the stone as must a date of 2452-1954 cal. BC from a mixed deposit thought to have been associated with the same sherds (Shulting et al. 2017, 358). The mound is partially restored with some kerbstones marked by concrete posts. (Eogan 1984, 146-56, 312-13, Site 18; 1986 72-3; Eogan and Roche 1997, 211-12)
The above description is derived from the published 'Archaeological Inventory of County Meath' (Dublin: Stationery Office, 1987). In certain instances the entries have been revised and updated in the light of recent research.
Date of upload: 10 July 2007
Amended: 16 September 2020
See the attached plans:
_1 Cemetery plan from Knowth 5, Fig. 2:1
_2 Tomb plan from Knowth 1, Fig. 56 Description Source: National Monuments Service, Department of Arts, Heritage Regional, Rural and Gaeltacht Affairs.