Elan Valley Past and Present - Garreg Ddy dam during a very dry spell, you can just make out the water bubbling up from Dolymynach Tunnel which feeds water from Dolymynach reservoir.
![The beautiful dams and reservoirs in the heart of Wales that are one of the country's best kept secrets - Wales Online The beautiful dams and reservoirs in the heart of Wales that are one of the country's best kept secrets - Wales Online](https://i2-prod.walesonline.co.uk/incoming/article23571591.ece/ALTERNATES/s615b/0_Severn-Trent-Elan-Valley-Birmingham-Water.jpg)
The beautiful dams and reservoirs in the heart of Wales that are one of the country's best kept secrets - Wales Online
![The beautiful dams and reservoirs in the heart of Wales that are one of the country's best kept secrets - Wales Online The beautiful dams and reservoirs in the heart of Wales that are one of the country's best kept secrets - Wales Online](https://i2-prod.walesonline.co.uk/incoming/article23533818.ece/ALTERNATES/s615b/0_TRMRMMGLPICT000020194675.jpg)
The beautiful dams and reservoirs in the heart of Wales that are one of the country's best kept secrets - Wales Online
![Garreg Ddu Dam Reservoir, Elan Valley, Rhayader, Powys: The arches of the stone bridge & surrounding scenery reflected in the water Stock Photo - Alamy Garreg Ddu Dam Reservoir, Elan Valley, Rhayader, Powys: The arches of the stone bridge & surrounding scenery reflected in the water Stock Photo - Alamy](https://c8.alamy.com/comp/W7426X/garreg-ddu-dam-reservoir-elan-valley-rhayader-powys-the-arches-of-the-stone-bridge-surrounding-scenery-reflected-in-the-water-W7426X.jpg)