This is what can be seen at the spot depicted upon the map, looking across Bwlch Coch to the excellent Pumlumon outlier Foel Fadian. To be fair, there did appear some manner of circular feature here... and this would be a typically ‘Bronze Age’ location, set below and to the southwest(ish) of the summit. However, there is no doubt in my mind about the mound at the summit.
Image credit: Robert Gladstone
