Chalk and Putty

Our beloved Mile Cross is sat on a bedrock of chalk, and on top of this chalk sits the deposits of gravels and clay left behind when the Ice sheets receded during the last Ice age. For millennia after the Ice sheets retreated northwards from where they came, the Wensum has been hard at work, slowly stripping back those layers as it snakes its way back and forth across the landscape, digging out what is now the Wensum Valley and helping to define the topography of the Estate we are familiar with now.

As it does so it exposes the chalk bedrock making it easier for the many generations of humans to excavate:Putty9 Continue reading “Chalk and Putty”