Trellyffaint Burial Chamber is a Neolithic burial tomb that dates back at least 6,000 years and is made up of two adjacent chambers. The larger one is a capstone supported by three stones and the smaller has three side stones. The site is southwest along the coastal road from the village of Moylgrove (Welsh: Trewyddel) in the community of Nevern (Welsh: Nanhyfer) in the north of Pembrokeshire, Wales (Welsh: Sir Benfro, Cymru).
Image: Trellyffaint side view of south-eastern Chamber image courtesy of University of Bristol.