As we enter this zone the geology changes from sedimentary to metamorphic schist and slate. 

By examining the different varieties and understanding the history we soon learn to recognise this material as it appears as tors, alluvial deposits and in road cuttings.   Early settlers used the local schist extensively for buildings, bridges and roads. Here too we can find gold and learn about the story of gold and its arrival in and near the rivers.

See also:- LINK  Formation Story   Pictures     Varieties