Trellyffaint

The dolmen of Trellyffaint is a portal tomb. It is located north of Nevern (Pembrokeshire) Trellyffaint is a double tomb with a large or main and small or secondary chamber. The capstone of the main chamber is supported by two stones to the south and a third supporting stone blocks the back of the chamber. The chamber height used to be greater, but the capstone slipped and broke.

The smaller, neighbouring chamber to the north-west consists of only three side stones. It may be a chamber added later or a stone box. It is possible that a cairn once covered both chambers.

Its name, which might be translated as ‘Toad’s Hall’, stems from the early medieval historian and geographer, Giraldus Cambrensis, who believed that its occupant was a chieftain who had been devoured by toads.