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The Claerwen Valley was dammed in 1952 as part of a scheme to provide water for Birmingham. The dam is almost twice the size as the others in the Elan Valley, and the reservoir itself snakes 5 miles up the valley.

Claerwen Reservoir, Powys
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Trallwm Forest Cottages
Llanwrtyd Wells
18
  • Holiday cottages
  • Sleeps 9, 1 bedroom
  • £210 to £1199 per night
  • Woodburner
  • Hot tub
  • Pets welcome