A probable single stone row (possibly double in places) only known from a description in the Royal Commission Inventory. The row which has since been destroyed measured 79m long and consisted of about 54 stones. The four westernmost stones were about 1m high and other were much smaller with many just protruding through the surface. The row was situated on a south west facing slope, was orientated north east to south west and stood in the vicinity of standing stones and barrows.


Wales Pembrokeshire Rest of Wales SM 92461 35588
Lat 51.9798587   Long -5.0235028

Map showing the location of Penmeiddyn stone row.

Conjectural plan of Penmeiddyn stone row (Source: description in Royal Commission Inventory)


Type: Single Length: 79m
No. of stones: 54 Size of stones: Large and small
Orientation: 56° Altitude: 94m
Upper end: – Lower end: –
Straight (Yes or No)  : Sea View: No
Context:  Standing stones and barrows
Notes: The four south western stones were the tallest all being about 1m high.

Other Information

Public Access:  No
Land Status:
Scheduled Ancient Monument: No


Category: Probable. It has been suggested that these stones may have formed part of a boundary, but the available description is much more consistent with a stone row. The destruction of the site means that its identification can never by fully resolved, but a stone row explanation seems most probable.


This stone row is of Type C12. Information on this form of stone row and other rows of this type is available here.

Online Resources 

Megalithic Portal     Archwilio     Royal Commission Inventory No. 642

Other References

Burl, A., 1993, From Carnac to Callanish – The prehistoric rows and avenues of Britain, Ireland and Brittany, Yale University Press, New York and London, pg. 225.


VISITED:- Not visted

FIRST PUBLISHED:- 13th February 2016

LAST UPDATED:- 18th November 2020

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