Might sound a bit "Off Topic", but a couple mines are described.
Royal Forest of Dean Caving Club Newsletter, June 2011, Vol 144.
Contents: Diary Dates, News, Whittington Stone with lots of colour photos, Potosi Silver Mine, Bolivia, again with a photo, Far North (DyO) even more superb colour photos, John Harvey MBE, former Deputy Gaveller, ie Forest of Dean Mines interest. Is now enjoying retirement in Lampeter.
Email me if you want to receive this as a pdf file.
Cutting coal in my spare time.