Folded gneiss exposed in stone steps

This is an oblique (45 degree) view down of some blocks of rock cut and placed to form steps in a stairway: the shadowed planes are vertical, at right angles to the sunlit flat (horizontal) planes. The rock is high-grade metamorphic gneiss; a three-dimensional view of the folded layering is shown well across the middle of the photo.

 

C. J.R. Devaney

Done