In wintertime, sheep use them as shelter from the prevailing wind, but when that brings snow, it can also bring trouble. Like stone chameleons, the field walls around here sink into the ground, take on the toned hues of the earth, and morph against the hills. Dry stone walls are quite a feature of the Yorkshire scenery, especially here in West Yorkshire, where thousands of miles of stacked sheet stone criss-cross the landscape in patterns that seemingly stretch to eternity. S
