Entrance grave is a type of Neolithic and early Bronze Age chamber tomb found primarily in Great Britain. The burial monument typically consisted of a circular mound bordered by a stone curb, erected over a rectangular burial chamber and accessed by a narrow, stone lined entrance. Entrance graves have been discovered in the Isles of Scilly, west Cornwall, southeast Ireland, southwest Scotland, Brittany and the Channel Islands. They are often referred to as the Scillonian Group, named for the Scillonian Islands where the majority of entrance graves have been discovered.