Ifor ap Glyn ar daith o gwmpas ardaloedd chwarelyddol Gwynedd, i ddathlu'r dreftadaeth ddiwydiannol a diwylliannol. Ifor ap Glyn visits some of the quarring areas of Gwynedd.
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Ifor ap Glyn ar daith o gwmpas ardaloedd chwarelyddol Gwynedd, i ddathlu'r dreftadaeth ddiwydiannol a diwylliannol. Ifor ap Glyn visits some of the quarring areas of Gwynedd.