Cairn measuring approximately 15 metres in circumference. It is located on the western edge of Llyn y Gader, near the summit of Cadair Idris. Cadair Idris is situated approximately south west of Dolgellau. The cairn was discovered during the Royal Commission's programme of archaeological aerial reconnaissance by Toby Driver on 2nd October 2015.
M. Ryder, RCAHMW, 4th October 2015.