river cliffSteep bank created on the outside of a river bend by the erosive effect of fast-flowing water undercutting the bank. leaving an overhanging bank. Water on the inner bend is slower, causing ...

Waterfalls close waterfallA vertical cliff of water where the water flows over a layer of hard rock on top of a layer of softer rock. The softer rock is eroded away causing the cliff edge to gradually ...

Crescent dunes and meandering rivers can 'forget' their initial shapes as they are carved and reshaped by wind and water while other landforms keep a memory of their past shape, suggests a new ...