Rhiwiau Barrow stands on a valley spur on the northern edge of the Mynydd Hiraethog moorland. This large Bronze Age round barrow has a diameter of approximately 25 metres and a height of 3 metres.

It is reported that a funery pot and bronze dagger were found here and carried off by looters. A more formal archaeological investigation took place in 1851 and two additional prehistoric pots were found.

The barrow has a twin, the gigantic Blaen y Cwm Barrow which lies on the opposite spur of the valley about half a kilometre to the west and so could be a part of a coherent ritual landscape similar to the nearby Brenig complex.

The barrow is on private farmland but can be well viewed and appreciated from the road.

ADS record for Rhiwiau Barrow

Location: Conwy, Wales
Grid Ref: SH94466063