Garn Las Round Cairn
This round cairn is found on the mountain between Aberdare and Merthyr (SO 0290 0385) and is a heap of large stones 14m in diameter and 1.5m high. The cairn occupies the northwest side of a forestry crossroads. Round cairns are from the Bronze Age, particularly 1700 and 1200 B.C.
Ref. Royal commission on Ancient and Historical Monuments in Wales : Glamorgan Vol.1 Part1,Tthe Stone and Bronze Ages. 1976. Page 67.
CADW Scheduled Ancient Monument Record : GM236(RCT) Garn Las Earthwork. (Report).