Three cairns in forestry on Bryn Llydan ("Wide Hill"). Coflein descriptions:
Carn Caglau (SN86060043)
A cairn, 9.8m in diameter and 0.4m high, showing the remains of a cist, which serves as a boundary mark.
Bryn Llydan cairn (SN86960046)
A cairn, 10m by 9.0m and 1.1m high, has been damaged by forestry ploughing and pierced by a hole recently dug into its E flank.
Carn Brynllydan (SN87560186)
Described as 'a disturbed mass of stones', 9.1m in diameter and 0.4m high. Possible cist elements have been reported and two modern cairns have been constructed upon it. The cairn serves as a boundary marker.