Gwynedd Archaeological Trust
Regional Historic Environment Record

Standing Stones, Penrhos Feilw

Primary Reference Number (PRN) : 2748
Trust : Gwynedd
Community : Trearddur
Unitary authority : Ynys Mon
NGR : SH22708094
Site Type (preferred type first) : BRONZE AGE STANDING STONE PAIR
Status : Scheduled Monument , Cared for by the State

Summary :
The Bronze Age Penrhos Feilw standing stones form a pair, which are located within visible range of the Holyhead Mountain hut circles. In the 1860s Stanley told us of the tradition that the stones may have once had a cist located between them, but he could not find any supporting evidence. It has also been suggested that they may have formed part of a stone circle - an idea that is possible if the grassy lowland plateau location is taken into account - but this theory is also rather unlikely.

The two standing stones are approximately 3 metres apart, and are almost identical in shape and size. They are approximately 3m high, 1m wide at the base and 0.2m thick. It is unusual to find a pair of standing stones in Anglesey although they are more common in southern Wales.

Description :
Standing stones. <1>

Two Meini Hirion, each about 10ft high, 3ft wide and from 8ins to 12ins thick, standing 11ft apart.

Stanley mentions a tradition that a large stone cist was found between the stones, which contained bones 'with spearheads and arrowheads', and stood in a circle of stones 4-5ft high. No evidence of this is visible. (RCAHMW, 1937) <3> <4>

As described in the Inventory. OS 25" revised. <5>

Condition unchanged. <6>

Two stones identical in size and shape stand only 11ft apart. Pairing of stones is quite rare, peculiar to Anglesey. <7>

Two standing stones 3.25m apart and standing in a saddle between two small hills. The SW stone is c.2.8m high, 1m wide at base and 0.2m thick. The other stone is 3m high, 1m wide at base and 0.2m thick. They are aligned on a NNE-SSW axis. <8>

As previously described. The pair of stones are set on a very slight rise on a level area that would be ideal for the supposed stone circle recorded from tradition. The stones seem clearly to be set just opposite a gap in a nearby ridge which gives a viewpoint directly towards the Ty Mawr hut circle settlement, or vice versa. (Smith, 2003)

Sources :
Senogles, H. , 1938 , Transactions of the Anglesey Antiquarian Society and Field Club.
Smith, G. , 2003 , Prehistoric Funerary and Ritual Monument Survey: West Gwynedd and Anglesey ( © GAT)
Smith, G., and Steele, N. , 2005 , Pan-Wales Prehistoric Funerary and Ritual Sites Survey: Trial Data Synthesis ( © GAT)
The Royal Commission on the Ancient and Historical Monuments of Wales , 1937 , An Inventory of the Ancient Monuments in Anglesey
Williams, G. , 1988 , Standing Stones of Wales and South-West England , <10>
Baynes, E. N. , 1911 , Transactions of the Honourable Society of Cymmrodorion , <3>
Stanley, W. O. , 1867 , Archaeological Journal , <4>
Stanley, W. O. , 1869 , Archaeological Journal , <9>
Ordnance Survey , 1969 , SH28SW 8 , <6>
Lynch, F. , 1970 , Prehistoric Anglesey , <7>
Ordnance Survey , 1963 , SH28SW , <1>
Ovenden, S. , 1990 , Geophysical Survey Penrhosfeilw, Anglesey , <13>
Ordnance Survey , 1967 , SH28SW , <5>
Wilson, J. C. , 1983 , Bulletin of the Board of Celtic Studies , <12>
Lynch, F. , 2009 , Anglesey Past Landscapes of the Coast , <15>
Longley, D. & Yates, M. , 2001 , Anglesey: A Guide to Ancient Monuments on the Isle of Anglesey , <16>

Events :
42514 : Geophysical Survey Penrhosfeilw, Anglesey (year : 1990)
40526 : Prehistoric Funerary and Ritual Monument Survey: West Gwynedd/Anglesey (year : 2003)
40527 : Pan-wales Prehistoric Funerary and Ritual Sites Survey: Trial Data Synthesis (year : 2005)

Related records
National Monuments Record Wales NPRN 95537 https://coflein.gov.uk/en/site/95537/

Compiled date : 02-02-1988


Images :



The above data are supplied by GAT in partnership with its Local Authorities (Anglesey, Conwy and Gwynedd County Councils, and Snowdonia National Park Authority), © GAT 2025 (and in part © Crown, 2025 - as indicated)
This information is supplied for the purposes of personal interest only and may not be used as part of a commercial project.

March 29, 2025, 3:03 am - HTML file produced from Gwynedd Archaeological Trust Regional HER
Gwynedd Archaeological Trust, Craig Beuno, Garth Road, Bangor, Gwynedd.  LL57 2RT
tel (01248) 352535,  fax (01248) 370925, email her@heneb.co.uk, web www.heneb.co.uk