The Modern Antiquarian. Stone Circles, Ancient Sites, Neolithic Monuments, Ancient Monuments, Prehistoric Sites, Megalithic MysteriesThe Modern Antiquarian

Dyffryn Mymbyr

Stone Circle

Dyffryn Mymbyr (Stone Circle) by thesweetcheat Stones of the western arc, looking north to the Glyderau summits, now in sunshine.
thesweetcheat Image Credit: A. Brookes/C. Bickerton (17.11.2012)
Posted by thesweetcheat
18th November 2012ce
Edited 5th January 2015ce
NB: Unless otherwise stated, this image is protected under the copyright of the original poster and may not be re-used without permission.

Comments (8)

Well they didn't get like that on their own, we can all agree on that, Good day? What did you think you think about the place? Questions, questions eh!!! You lived though. bladup Posted by bladup
18th November 2012ce
Answers are less forthcoming...

Whatever it is, it's definitely man-made, but the question of "when?" is obviously much less easy to answer. It's not a circle, but an ellipse - the diameter E-W is a couple of yards more than the diameter N-S. The stones are all slender (apart from the off-centre stone within the circle, which appears natural) and have obviously been selected for the purpose of putting up on end. They are comparable size-wise with the bigger stones at Cerrig Pryfaid, about 10 miles distant as the crow flies. They are not the kind of stones you would use in the footings of a hut circle or sheep pen, as they're too thin. There's a degree of "wobble", but not unexpected given how waterlogged the site is. The setting is stunning, in a natural amphitheatre below the Glyderau with views of Crib Goch/Y Lliwedd across the pass.

The top of a smaller stone, very earthfast, protrudes on the southern arc of the circle (see Gladman's pics) and I suspect that there are probably more smaller stones hidden under the water, mud and vegetation.

I'd like to think it could be a prehistoric circle, but unless someone drains the site and removes the top layers it seems unlikely we'll know for sure - perhaps a drought might expose more, as has happened at various Dartmoor sites of small stones. A few walkers with nothing better to do could have put it up, but there is drier land within 100 yards that would have been a more attractive proposition for a folly of that sort, and I don't think it seems likely. But if it isn't it a prehistoric circle it has no obvious other purpose or function that I can think of.

We had a great day, thanks. Wellies were definitely appreciated - even the simple walk from Pen y Gwyrd was a waterlogged nightmare.
thesweetcheat Posted by thesweetcheat
18th November 2012ce
Great stuff, i'll just wait for that drought then, At least it looked dry from above for you though. bladup Posted by bladup
18th November 2012ce
Yep, it was - the tops were in heavy cloud but we were nice and sunny. thesweetcheat Posted by thesweetcheat
18th November 2012ce
Guess where we went back to today, I can safely say that I can now find this circle in the dark. postman Posted by postman
18th November 2012ce
Yeah because the moon reflecting on the water would light your way, glad you had a good day and good weather and even a trip to the lovely aber falls. bladup Posted by bladup
18th November 2012ce
The weather wasnt as good today as it was yesterday postman Posted by postman
18th November 2012ce
Glad you went back, hopefully fully equipped. thesweetcheat Posted by thesweetcheat
18th November 2012ce
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