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Strange 'dragons' breath' coming from Eryri hills like 'phantoms passing underneath'
Walkers admiring stone-built sheepfolds in the Eryri mountains are sometimes surprised to see white vapour emitting from amidst some of them. Plumes mysteriously rise into the air as if coming ...
Wales Online25d
The Welsh hills where plumes of white smoke rise up from underground tunnels
Hikers admiring the stone-built sheepfolds in the Eryri mountains are occasionally taken aback by white vapour rising from some of them. The mysterious plumes seem to originate from deep within ...