Joe Duxbury said:
Last weekend, a combined Gloucester SS/RFDCC group went through from Croesor to Rhosydd slate mines, and very exciting it was, too. But there is surely much more of these mines to be visited. Is there an online map, such as the one that exists for the Cwmorthin Slate Mine? So I can see what else there is under the mountain?
You've seen most of the accessible bits of Croesor already
The lower levels, B, C & D down are flooded - these were the better, more stable parts of the mine and had been used for storage of explosives in the 1960s. They are, however, now very damp!
The upper levels, B, C & D up are basically inaccessible as the floors have been worked away and the cross-bridges collapsed. You can get across the two chambers on the right on floor A if you take a boat, but there's not much to see.
There may be an outside chance of there being *something* to see in the upper levels, but it seems highly unlikely that it's accessible, mostly on the basis that it would need a lot of climbing and all you would find would be a 30' tunnel that had a monstrous drop on both sides.
Rhosydd is another case altogether: it has a lot more accessible workings and can provide a bit more to play with. We're going to have a bit of a wider look a week on Saturday (May 17th) with the intention of finding a couple of new ways in/out which may make the through trip a bit more interesting.... have a look at http://www.aditnow.co.uk for information under "Events".
