Glyn, Llanbedrgoch (S.S.E. face, Griffith's text)
This Cromlech lies in a field on Glyn farm, on the left-hand side of a bye-lane leading to Llanbedrgoch from the main road from Pentraeth to Llanallgo. It seems to have been a very large structure, but it is now embedded in the earth. At the east end the chamber lies open. One of the supports, which is five feet long by three feet four inches wide, has been removed,and is lying close by. The other supports are in situ, embedded in the soil and debris which have accumulated around them. The one that faces the south side at the entrance is three feet seven inches long, and two feet wide. The capstone is fourteen feet five inches long, and is eight feet wide at the east end, six feet at the middle, and three feet at the extreme west end. It averages from two to three feet in thickness, and is cracked through near the west end. It is composed of white limestone, which abounds in the neighbourhood, similar to Pant-y-Saer and Lligwy Cromlechs. This is not recorded in the Ordnance [Survey] Map, nor in Arch. Camb.