Thanks for the interest! We are moving house very soon to Low Mill near Ilkley so all the Dales are within easy reach for me. I work as a marine engineer (in the North Sea unfortunately) so am not always available but always willing to correspond when not walking. Some people may have been in mines that I have not but it would appear that I may have been in mines that are forgotten. We spent weeks surveying Buckden Gavel (a popular dry mine now) in the vain hope that we could walk into Buckden Pike at one side and appear at the other side in Bishopdale (impossible!). This was before the NMRA survey. I did spend some time in the upper levels there. Coming to a forehead I realised that someone must have said 'No more lads' and ceased work. I put out the light and sat in the dark and silence having a fag, as you do, feeling very secure. When I left the drive I noticed that the last foot prints before mine were clog irons going out so I was the first person in there for over 100 years. I swear I could here the miners talking in the distance, very weird. It is possible to become very close to old miners. Intrigued by a reference by Arthur Raistrick of gunpowder being used in the late 1600's in Colsterdale, a valley known only for coal, I wondered why they would be blasting in a coal mine (High Engine Pit to be precise). Delving into the Cunliffe-Lister manuscripts in Bradford library I came across the daybooks for the mine detailing who was working there on each day and how much they had been paid (interestingly this group of miners withdrew their labour because they had to pump out the mine each day before they could hew coal and didn't get paid for this. They were effectively 'on strike' until new pumps were provided. They were described in a letter from a Mr Robinson, the mine manager, to Sir Abstobus Danby, the mine owner, as 'these meddlesome miners'. How quaint is that!). I digress.....when turning the pages of a particular daybook I noticed that in leaves of a particular page there were many fragments of galena. This must have been the very day they came across a mineralised fault and brought the evidence to the surface with great excitement and broken it up in the office where the book lay open. I felt as though I was there. And that's pretty weird too!
I feel like starting at Adelaide Level in Swaledale. The portal has been rebuilt (by whom?). There are two levels there in fact probably not extensive judging from the deads but the walking is great!