Gray Hill

Looking south east along the row with Severn Second Crossing in the background.

A probable single stone row measuring 78.7m long, including 6 different sized stones situated on the upper south facing slope of a prominent hill. The row is orientated north west to south east and leads from one side of a kerbed cairn. A further cairn survives in the vicinity.


Wales Monmouthshire Rest of Wales ST 43639 93654
Lat 51.63813504    Long -2.81419873

Map showing the location of Gray Hill stone row

Plan of Gray Hill stone row (Source: GPS survey by Sandy Gerrard). Stone row shown black and stone circle red.


Type: Single Length: 78.7m
No. of stones: 6 Size of stones: Small, medium and large
Orientation: 126° Altitude: 258m
Upper end: – Lower end: Stone circle
Straight (Yes or No)  : Sea View: Yes
Context:  Cairn
Notes: Despite an extensive search the stone described as situated at ST 43639 93654 could not be found.  There is considerable quarrying in the area and any stone identified here may have been connected with that activity rather than the row.

Other Information

Public Access:  Yes
Land Status:
Scheduled Ancient Monument: MM031


Category: Probable. It is clear that stones and rocks on this hillside have been shifted during the historic period and it is possible that some of the stones identified as forming this stone row may have been placed in their present positions at this time.  The two largest stones were almost certainly erected during the prehistoric times and at least some of the others were probably erected at the same time.  The uncertainty is reflected in the category given to this site.


This stone row is of Type S9. Information on this form of stone row and other rows of this type is available here.


The two large orthostats. View from north west (Scale 1m).

Looking north west along the row.

Individual Stones

Plan showing the position of the numbered stones

Stone 1 measures 0.30m long by 0.20m wide, stands 0.19m high and is orientated at 297°. View from south west (Scale 1m).

Stone 2 measures 0.94m long by 0.47m wide, stands 2.04m high and is orientated at 303°. View from south west (Scale 1m).

Stone 2. View from south east.

Stone 3 measures 0.50m long by 0.40m wide, stands 0.05m high and is orientated at 223°. View from south (Scale 1m).

Stone 4 (in front of ranging rod) measures 0.66m long by 0.13m wide, stands 0.12m high and is orientated at 285°. View from north (Scale 1m).

Stone 5 measures 1m long by 0.53m wide, stands 0.36m high and is orientated at 302°. View from east (Scale 1m).

Stone 6 measures 0.95m long by 0.49m wide, stands 1.66m high and is orientated at 275°. View from south (Scale 1m).

Stone 6. View from east with kerbed cairn in the background (Scale 1m).

Stone 6 and kerbed cairn. View from south (Scale 1m).

Kerbed cairn and stone 6. View from south west (Scale 1m).

Kerbed cairn and stone 6. View from west (Scale 1m).

Access Information

Car parking is available at ST 42871 93864. From here cross the road and follow the track that starts at ST 42884 93940. At ST 43270 93715 take the footpath leading up the very steep hill and follow this to ST 43641 93659. Head downhill from here to the row.

Online Resources 

Megalithic Portal     Modern Antiquarian     Coflein     Archwilio

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VISITED:- 12th May 2018

FIRST PUBLISHED:- 13th February 2016

LAST UPDATED:- 17th January 2019

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