Rhiwgreiddyn slate quarry
Overflow from the dam, Abercorris / Cwmodyn...
Clywedog reservoir
Man photographing Clywedog
Overlooking Clywedog reservoir
RHONDDA FACH WATER SCHEME, PONTYPRIDD WATER...
TAFF FECHAN RESERVOIR;PONTSTICILL RESERVOIR,...
LLYN CLYWEDOG RESERVOIR, LLANIDLOES
LLYN BRAN, MYNYDD HIRAETHOG
LLYN CELYN, TRYWERYN VALLEY
WENTWOOD RESERVOIR
COEDCAE RESERVOIR III
USK RESERVOIR
LOWER LLIW RESERVOIR
FFESTINIOG PUMPED STORAGE SCHEME: LLYN STWLAN...
LLYN CWMYSTRADLLYN (RESERVOIR)
LLYN CWELLYN