I was up in the area visiting a friend lucky enough to call the Preselis his neighbourhood. He has a great interest in the standing stones of the area but less so as regards the circles. He mentioned to me that on a walk he had passed that way before but had seen no evidence of the circle. Being of the personality type that I would still have liked to photograph an empty field - even if just for the record to say that this circle had passed the way of so many others, I persisted in taking the 10 minute walk from the parked car to where the OS map represents Dyffryn with a "Cairn" marking at SN059284.
Dou can imagine how pleased I was to find any vestage of the stones remaining. But to find these in a reasonable condition was a real joy.