Dog Walks Wales Llyn Brianne Reservoir 11 - Dog Friendly Wales | Dog Friendly Hotel

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South Wales Dog Friendly Walks - Llyn Brianne Reservoir

Llyn Brianne Reservoir: Where to find it


Llyn Brianne Reservoir is 5 miles (as crow flies) North West of Llanwrtyd Wells, on the headwaters of the river Towy, near to its source in the Cambrian Mountains.

The reservoir was built in 1972 by damming a section of the river Towy to supplement flows in the river during low flows, and as compensation for extracting water supplies some 40 miles downstream at Nantgaredig, near Carmarthen.

The dam is believed to be the UK's biggest at a height of 300ft.


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