Erosion Control, Black Mountain

It might look like a particularly sadistic hurdle race, but these structures accross the main path up Picws Du are to dissuade people from using the route that has been badly erroded by walkers. Erosion control and path maintenance are ongoing activities throughout the National Park to help protect the countryside for future visitors. The fact that it appears to be necessary even in this seeminly remote part of the Brecon Beacons is testament to how fragile the environment is.