Afon Hyddgen

View south westward along the row.

A single stone row measuring 7m long, including four small and medium-sized stones situated near the bottom of a steep sided valley with restricted views of the landscape. Three stones are upright and stand between 0.7m and 0.13m high, the remaining stone is recumbent. The row is orientated north east to south west and stands close to a stone pair known as Cerrig Cyfammod Glyndwr.


Wales Powys Mid Wales SN 78086 89437
Lat 52.48887164   Long -3.796855873

Map showing the location of Afon Hyddgen stone row.

Plan of Afon Hyddgen stone alignment (Source: Survey by Sandy Gerrard and Sophie Smith).


Type: Single Length: 7m
No. of stones: 4 Size of stones: Small and medium
Tallest stone: 0.70m Shortest stone: 0.13
Orientation: 40° Altitude: 351.7m
Upper end: – Lower end: –
Straight (Yes or No)  : No Sea View: No
Context:  Cairns
Notes: Three upright stones and one recumbent. Aligned on a cairn situated 235m to the south west at  NGR SN 77931 89237.

Other Information

Public Access:  Yes
Land Status:
Scheduled Ancient Monument: MG309


Category: Plausible.  No doubts have been expressed regarding the prehistoric interpretion of this row.


This stone row is of Type S1. Information on this form of stone row and other rows of this type is available here.



There are relatively restricted views from the stone row, with the most extensive being towards the south west. The cairn on the distant summit of Disgwlfa Fawr is at the limit of visibility and is framed between the nearer hill of Drosgol on the west and Yr Helfa Las on the east.


View from the north east (Scale 1m).

Access Information

Limited car parking is available at SN 77493 87958. Follow road on foot northward to SN 78298 89033. Turn left and follow path towards the bridge at SN 77968 89127. Climb the steep slope and then make your way across open moorland to the row.

Online Resources 

Modern Antiquarian     Coflein     Archwilio


VISITED:- 21st March 2016

FIRST PUBLISHED:- 12th February 2016

LAST UPDATED:- 10th January 2018

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