Out doing a bit of exploring today -- and I think I may have found the traces of a morainic ridge at around 900 ft on the southern flank of the Mynydd Melyn summit. It's not very obvious on the ground, but there is a distinct linear accumulation of erratic boulders in a field adjacent to the road. There is a "gravel pit" marked on the map, but it cannot have been uised for gravel -- for stone building materials, mopre likely......
I will go back and explore the feature in more detail when the weather is more auspicious.
Now that Mynydd Dinas is our local mountain, rather than Carningli, I have a lot of exploring to do. I am more and more convinced, from the appearance of the ground surface and the wide rolling plateau surface, that this was a perfect location for the establishment of a small ice cap at various stages during the Quaternary.
Just to the south of the map reproduced above are the famous Russia Stones, which I have featured in earlier posts.
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