Prince Charles at Aberystwyth University, 1969
Dinas dam showing discharge regulator in action...
The weir and Felin Newydd Bridge, Capel Bangor
An observation terrace at Felin Newydd, Capel...
Felin Newydd bridge, Capel Bangor in 1964
Felin Newydd bridge, Capel Bangor in 1955
Weir at Felin Newydd, Rheidol Hydro Electric...
Caern Owen quarry, Rheidol Hydro Electric...
Road bridge on approach road to Dinas power...
Man fishing at Rheidol Hydro Electric Station,...
30,000 volt switching station, Rheidol Hydro...
View of reception room at Rheidol, Rheidol...
The control room, Rheidol Hydro Electric...
Top of number 3 machine spiral casing showing...
Drainage and dewatering pump motors, Rheidol...
Cwm Rheidol power station, 1965
Dinas pressure tunnel, Rheidol Hydro Electric...
Dinas turbine hall, Rheidol Hydro Electric...
Dinas station control panel, Rheidol Hydro...
Main shaft casing, No.1 turbine, Rheidol Hydro...
Dinas Power Station, Rheidol Hydro Electric...
Nant-y-Moch Dinas Tunnel, Rheidol Hydro...
Nant-y-Moch dam and reservoir, Rheidol Hydro...
Nant-y-Moch dam under construction, Rheidol...
