Pont Melin Fach Pont Melin Fach Silica Mine Silica Mine Silica Mine Tramway sleepers Tower Colliery The Beacons Blaencwm Mountain Rd retainer Blaen Rhondda mast View from the Rhigos The beginning Wern Works Wern Works fire Canal side Canal side Cranes Giants Grave Giants Grave Sgwd Ddwli Lower Ddwli Falls Sgwd y Bedol Sgwd y Bedol Sgwd Gwladus Sgwd Gwladus Sgwd Gwladus Silica works Coal level Abutment