One of six cairns located on Mynydd Rhiw. No trace of this cairn survives; it was removed during the construction of a radio station and mast. In 1939 it was described as being 18m in diameter.

Louise Barker, RCAHMW, July 2015

Sources
RCAHMW, 1964 Caernarfonshire vol III. A Survey and Inventory by the Royal Commission on the Ancient and Historical Monuments of Wales. (Mon. No. 1753)
OS495 card: SH22NW2