Penrhiw-Wen is just off the old Aberystwyth Mountain Road and has two
Standing Stones - Maen Serth / Esgair Dderw Standing Stone and Maengwyngweddw Stone,
(The White Widow). One Cairn - Clap yr Arian Cairn, two other cairns were destroyed for
road metalling some time ago, a bronze age axe was found at one of the cairns.
All three sites are a short walk away from the road and are the easiest sites to get to in
The Elan Valley.
Map Ref SN940 700
Maen Serth / Esgair Dderw Standing Stone, 2.1m high.
In 1176 two local princes Einion Clyd and Morgan ap Meredydd were returning from the Great Eisteddfod in Cardigan,
held by the Lord Rhys, Prince of South Wales to celebrate the completion of Cardigan Castle,
when they were ambushed and killed by the soldiers of Roger Mortimer, Earl of Wigmore,
who had designs on their land. Tradition has it that they were killed here at Maenserth,
known locally as the Princes Stone.
Map Ref SN863 770
Maengwyngweddw Stone, (The White Widow) Bronze Age Standing
Stone. Quartz boulder 0.76m high.
Map Ref SN925 705
Bronze Age Round barrow, 16m diam, 8
kerb stones visible on W side. In 1910 a stone axe-hammer was found nearby, there were two
other cairns nearby but destroyed for road metalling.
Map Ref SN936 699
Beaker-type stone axe dating from the early Bronze Age. The
stone is spotted blue Dolerite and was found between two upright stones at the centre of one
of the Clap Yr Arian cairns. Been made of Dolerite stone is edivence it must have been
carried here from the Presely mountains of Pembrokeshire. This axe is on display at the
Radnorshire Museum in Llandrindod Wells.
Map Ref SN936 699
Tel: 07870954997
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