Coarse sandstone (gritstone) predominates at the surface - with carboniferous limestone in abundance too.
I have a good picture or two which would help a great deal. I could add them to the Mynydd Llangatwg page - but it won't move past the 'Submission Guidelines' despite me accepting the terms and conditions)
Reply | with quote | Posted by ClydachGeorge 27th September 2016ce 16:35 |
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