Comment:
Why select an apparently ordinary stretch
of a stone wall to feature as Picture of the Month? Well,
there is more to be seen than at first meets the eye. Beyond
the foreground wall is the parish of Urswick, the almost entire
solid geology of which is limestone. The field boundaries
across that parish are delineated by either drystone walls
constructed from limestone which has normally been quarried in
relatively close proximity to where the walls were built, or the
boundaries are hawthorn hedges growing on a stone and earth base.
This use of local stone has resulted in what are now grassed-over
hollows around the parish from where the limestone was quarried in
modest amounts from each excavation. Limestone walls
and hawthorn hedges are readily seen in this picture beyond the
foreground wall. This wall, it will be seen, is constructed,
not from quarried limestone but predominantly from rounded boulders
which were taken from the land after being left by the glaciers
which both ground them round when moving and deposited them when the
glaciers stalled and melted. These boulders have travelled
some distance after being picked by the glaciers from different rock
types remote from the local limestone. As well as telling a
geological story the picture also tells an economic one. The
glaciers did not stop where the foreground wall is but also spread the
same boulder types across Urswick Parish. It must
therefore have been the case that the combined effort of locally quarrying
the limestone and constructing walls from quarried material was
easier and therefore more economical than collecting sufficient glacial
boulders and using them to construct the walls. The differing
quality of the resulting walls may have also been a factor.