Register here - as a registered user you get more features and fewer ads.
I can confirm this story. The letters were sprayed in sheep marker fluid. Brecon Beacons National Park staff have removed most of the fluid using mild detergent and scrubbing brushes. However, due to the nature of the stone, and the need to avoid damaging lichen some fluid still remains. Hopefully time and Welsh weather will remove the rest.
Something is not right. This message is just to keep things from messing up down the road