In reply to nigel n: Nearly all of the markings are still intact, there is one in the Goyt that I have not found, despite several attempts. The one in Combs was certainly there several years ago, but took a bit of finding. The other main problem is the starting point at the back of Whitehall, the original appears to have been overwritten, and I have found neither. I do not want to give much away as it took quite a few enjoyable trips to piece the whole thing together, and if I can do it, so can others.
The missing checkpoint in the Goyt has supposed to have been found, but at a slightly different location, I didn't find it there either.