Image of Moelfre (Glantwymyn) (Round Barrow(s)) by GLADMAN

The monument can be clearly seen surmounting the 1,539ft summit of Moelfre upon concluding the very sharp ascent from Bwlch Glynmynydd to the (approx) northeast. Note that this is NOT where it is depicted upon current OS mapping... whether there is actually anything – or once was anything – at the said location would appear dubious.