bit late putting on sorry
recent explore to a old chert mine in derby,very nice looking place with alot to see
there has been rumours this mine has bad air in the top levals but i have contacted the member for no reply,yet everytime i have been here my four gas has shown that both upper and lower had normal readings,so wonder if its a try to keep people away
recent explore to a old chert mine in derby,very nice looking place with alot to see
there has been rumours this mine has bad air in the top levals but i have contacted the member for no reply,yet everytime i have been here my four gas has shown that both upper and lower had normal readings,so wonder if its a try to keep people away