Posted: 30/05/2016 at 08:08
The 'steps' tend to happen when people take a detour from the path onto a grassy area of the hill- usually on sections where it's a steep expanse of rock to cross, which is fine to scramble up when dry. They, in turn, get worn away, leaving that little fringe. Once there's an alternative, people follow the same route so it gets more and more worn flat. It's pretty at this time of year as the little reeds are growing strongly.
I love those pix yarrow. We don't always appreciate dandelions when we curse them for seeding into beds and grass! Nature makes such perfect structures - and all done without a measuring tape