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Shown are the 2 most recent glacial till layers with the remnants of a previous river channel. the upper layer is fluvio-glacial with rounded stones, whilst the lower (darker) till layer is probably from the Devensian Ice Age and contains angular stones, typical of purely glacial origin.The current river is continually exposing these layers and the bedrock of mudstones is cut through just a 100m up and down stream from this point.