safle o ddiddordeb gwyddonol arbennig

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  Mwyngloddfa Nant-y-cagl, Ceredigion

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  Mwyngloddfa Llety Ifan Hen,Ceredigion

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  Mwyngloddfa Llechweddhelyg, Ceredigion

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  Mwyngloddfa Cwmystwyth, Ceredigion

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  Mwyngloddfa Brynyrafr, Ceredigion

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  Cwmsymlog

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  Coed Cwm Cletwr, Tre'r-ddôl

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  Allt Wen a Traeth Tanybwlch, Aberystwyth

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  Darren Mine, Ceredigion

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  Craigyfulfran and Clarach, Ceredigion

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  Cwmbrwyno Mine, Ceredigion

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