Afon a'r Graig, Yr - Ceubyllau Afonydd Cymru

Inbunden, Kymriska, 2022

216 kr

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Beskrivning

Where rivers flow over rock, the combined action of water and sediment can create intricate and beautiful natural sculptures. Some of the most striking forms are potholes: roughly circular depressions carved into the rocky beds of turbulent, upland rivers.