My thanks to Howard for supplying some more text and pictures for this page, and Tre’r Dryw Bach in Anglesey. Obviously still enjoying retirement, he says, "Here are some (amateur) photographs of two stone circles in Wales that may fill gaps in the stone circle web pages."
"This is Moel Ty Uchaf stone circle at map reference SJ057371. The photos were taken on a rainy day unfortunately. The route to Moel Ty Uchaf is as follows: Take the B4401 Corwen to Llandrillo road along the Dee valley. About 3 km past Cynwyd, where the road crosses a small stream (Afon Llynor) by a Caravan Park (on the RHS), turn left up a minor road to Ty Uchaf. There is a telephone box by this turning. Follow the minor road up till you reach the gates at the end of the paved section. It is just possible to park there without obstructing any of the gates. Although the road carries on as an unpaved track it is best to walk the remaining distance to the top of Moel Ty Uchaf from where you will be able to see the stone circle and, if the weather allows it, see fine views." Another obscure stone circle is added to the catalogue of those which can be seen on-line, thanks Howard.
The second picture is closer up to the circle, at a somewhat different angle and shows the remains of a log fire right at the centre of the circle. The views in both directions must be beautiful when the clouds are not so low.
As in other cases the style of the circle is quite distinctive, but there are similarities with some others. The stones at Swinside in Cumbria are similarly close-set but these are more on the scale of the knee high circles of Derbyshire.