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.
Afon a'r Graig, Yr – Ceubyllau Afonydd Cymru – Dewi Roberts, Stephen Tooth, Hywel Griffiths
462 Kč
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 ……Další informace
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