Mynydd Dyfnant (Cerrig yr helfa)

Looking north along the row (scale 1m).

A single stone row measuring at least 16.85m long, including 8 small, medium and large-sized stones standing up to 1.54m high, situated on a south facing spur. Originally there would have been wide ranging views to the east but these are now obscured by forestry. The row is orientated NNE to SSW, may have led upslope from a cairn and has suffered considerable damage.

Location

Wales Powys Mid Wales SH 98520 15742
Lat 52.729764   Long -3.5042135

Map showing the location of Mynydd Dyfnant stone row.

Plan of the stone row. (Source: Gibson, A., 1992, Figure 3 – original available here). The scale shown in the original plan is wrong and has been revised.

Characteristics

Type: Single Length: 16.85m
No. of stones: 8 Size of stones: Small, medium and large
Orientation: 20° Altitude: 392m
Upper end: Cairn? Lower end: –
Straight (Yes or No)  : No Sea View: No
Context:  Standing stone
Notes: Also known as Cerrig yr helfa.

Other Information

Public Access:  Yes
Land Status:
Scheduled Ancient Monument: MG134

Interpretation

Category: Plausible. Despite some damage this line of stones represents a good example of a prehistoric stone row.

Photographs

The stone row is visible from the nearby forest track. View from west.

A confusing site.  The stone in the foreground was erected sometime between 1983 and 1988.

Looking north along the row.

Three stones towards the southern end of the row.  View from above and west (Scale 1m).

View from above and north (Scale 1m). The stone on the right may have formed part of the kerb of a cairn. The one in the centre was erected between 1983 and 1988.

Individual Stones

Plan of the stone row showing the position of the numbered stones. Stones 1 – 8 form part of the row. Stone 9 was erected after 1983 and stone 10 may represent the remains of a kerb or perhaps part of the row.

Stone 1 measures 0.44m long by 0.20m wide, stands up to 0.19m high and is orientated at 27°. View from west (Scale 1m).

Stone 2 (left of ranging rod) measures 0.53m long by 0.40m wide, stands up to 0.05m high and is orientated at 55°. Stone 1 is visible on the right. View from west (Scale 1m).

Stone 3 measures 1.16m long by 0.36m wide, stands up to 1.54m high and is orientated at 12°. This stone would have originally stood 1.73m high. View from south east (Scale 1m).

Stone 3 leans towards the north west.  View from north (Scale 1m).

Stone 4 measures 0.63m long by 0.36m wide, stands up to 0.80m high and is orientated at 90°. View from north west (Scale 1m).

Stone 5 measures 0.48m long by 0.29m wide, stands up to 0.45m high and is orientated at 22°. Stone 5 is in front of the ranging rod, stone 4 is behind and stone 3 beyond. View from north (Scale 1m).

Stone 5 to the left of the ranging rod and stone 4 on the right. View from west (Scale 1m).

Stone 6 measures 1.58m long by 0.4820m wide, stands up to 0.19m high and is orientated at 27°. View from west (Scale 1m).

Stone 6 viewed from the north east. Stones 3 and 4 are visible in the background (Scale 1m).

Stone 7 was not visible at the time of the visit and its size could not be determined.

Stone 8 measures 0.33m long by 0.17m wide, stands up to 0.07m high and is orientated at 35°. This stone probably represents the northern end of the row. View from west (Scale 1m).

Stone 9 was erected sometime between 1983 and 1988 and therefore does not form an original part of the stone row. View from north with row stones in the background (Scale 1m).

Stone 10 measures 0.52m long by 0.38m wide, stands up to 0.44m high and is orientated at 11°. View from north (Scale 1m). This stone is seen as forming part of kerb surrounding a cairn or perhaps even the solitary remaining stone of a stone circle. It is however possible that it formed part of the stone row if its orientation had shifted slightly (around 17°) towards the northern end.  

Access Information

Limited car parking is available at SH 97909 14324. From here follow the road a short distance west to SH 97809 14424. Head north along the footpath to SH 97994 15215. Enter the forest and head north along forest tracks to the row.

Online Resources 

Megalithic Portal     Coflein     Archwilio     Survey Report 

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.


Timeline

VISITED:- 28th August 2018

FIRST PUBLISHED:- 12th February 2016

LAST UPDATED:- 14th January 2019

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