A couple of days ago I received the latest Gwynedd Industrial History Society newsletter. In it there is a section titled Llechwedd Quarry written, I believe, by GIHS chairman Dr Dafydd Gwyn.
"LLECHWEDD QUARRY
The stories about Llechwedd quarry continue to circulate - the demolition of the winding house was as 'distressing IA news' in the Autumn 2007 Industrial Archaelogy News, very inaccurately." The article then goes onto another matter.
The last GIHS newsletter had similar comments (haven't got it to hand) basically saying Llechwedd had done nothing wrong. This seems rather a strange thing for a local IA group (or at least it's chairman) to say. Okay, no one said it was illegal, after all it wasn't listed, but as for it not being wrong, well......