Corris Uchaf
view of Blaenau Ffestiniog from Graig Ddu
Pont-y-Rhiw, Rhiwbryfdir
Aberllefenni
Penmachno quarry
Aberllefenni quarry engine room
Penmachno quarry, c. 1875
Aberllefenni quarry engine room, c. 1885
The engine room of Braich Goch quarry, Corris,...
Workers at Glyndyfrdwy quarry, Corwen, c. 1885
Cefn Slate Quarries, Cilgerran, 1908
The 'Car Gwyllt' which was used by...
Foty Slate Quarry, Blaenau Ffestiniog, 3...
Quarrymen at Aberllefenni Slate Quarry, 18...
Glyn Roberts splits slates at Llechwedd quarry,...
