An introductory chapter provides an overview of human migration and settlement in Wales leading up to the creation of megalithic tombs. The 100 tombs that have significant remains are then described in detail. These are grouped in eight core areas: around the Black Mountains on the border with Herefordshire; South-East Wales around Newport; the Gower Peninsula; South-West Wales; Harlech; the Lleyn Peninsula; Anglesey; and North Wales, together with a few isolated monuments. A brief overview is given to each group as to similarities of style and approach to construction and/or use, and each site is described and what is known through excavation etc. set out.
George Nash is a part-time lecturer at the Department of Archaeology and Anthropology, University of Bristol and a Principal Archaeologist at Gifford (Chester). George has researched the Neolithic and Mesolithic over most of Europe.