Martin Pritchard:
The overflow at LLyn Celyn near Bala in Gwynedd.
Martin Pritchard:
The power house at LLyn Celyn near Bala Gwynedd in 1965.
Martin Pritchard:
Ariel view of the LLyn Celyn Bala Gwynedd dam under construction in 1965
Martin Pritchard:
The LLyn Celyn dam Bala Gwynedd under construction in the early 1960s
Martin Pritchard:
Plant at work during the construction of the Llyn Celyn Bala Gwynedd. dam
Martin Pritchard:
The chapel at Tryweryn near Bala Gwynedd in the late 1950s
Martin Pritchard:
The chapel and chapel houses of Tryweryn Bala Gwynedd in the late 1950s
Martin Pritchard:
The post office at Tryweryn Bala Gwynedd in the late 1950s
Martin Pritchard:
The dam etched in on this photo of Tryweryn, note the steam engine on the right hand side late 1950s
Martin Pritchard:
Plan of the Llyn Celyn scheme Bala Gwynedd
Martin Pritchard:
Cross section through the Llyn Celyn dam dated 1961
Martin Pritchard:
Plan of the draw off tower of Llyn Celyn Bala Gwynedd
Martin Pritchard:
Plan of LLyn Celyn reservoir dated 1961