Yng nghwmni Ioan Rhys Lord, mae Aled yn dysgu rhagor am fwyngloddio yng Nghwm Ystwyth. Aled learns more about mining in Cwm Ystwyth. Show more
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Yng nghwmni Ioan Rhys Lord, mae Aled yn dysgu rhagor am fwyngloddio yng Nghwm Ystwyth. Aled learns more about mining in Cwm Ystwyth. Show more