Gaer Llwyd Burial Chamber is in Gaerllwyd, Monmouthshire, Prehistoric Wales Neolithic Burials.
Book of South Wales. Between four and miles to the north of Caerwent on a hill forming part of a small farm, called Gaer Llwyd, about a mile from Newchurch-in which parish it is situated-is the Cromlech [Gaer Llwyd Burial Chamber [Map]], depicted in the accompanying sketch. The upper stone is twelve feet long and about three feet and a half broad, and the uprights vary from four to five feet. Vestiges of a trench and bank are discoverable round this Cromlech, which is the only one in the county, and has been strangely overlooked by Coxe and other topographers.