This is a stone cairn, 9 metres by 9 metres and 0.4 metres high, with an open central cist. The cist is constructed of four edge-set slabs and measures 1.2 metres north to south by 0.9 metres wide and 0.30 metres deep. The cairn is covered by grass and moss, with a possible internal kerb, 6 metres in diameter. It lies within an extensive cairn cemetery/cairnfield on the western side of Bryngwyn Bach.

J. J. Hall, Trysor, 1st February 2013