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Strange vapor emerges from Eryri hills due to tunnel shafts. It resembles steam, linked to Victorian railway project. Strange vapor emerges from Eryri hills due to tunnel shafts. It resembles steam, linked to Victorian railway project. Eryri Hills Emit Mysterious Vapor Resembling Dragons Breath Eryri Hills Emit Mysterious Vapor Resembling Dragons Breath Hikers see vapor…

Strange vapor emerges from Eryri hills due to tunnel shafts. It resembles steam, linked to Victorian railway project. Eryri Hills Emit Mysterious Vapor Resembling Dragons Breath Hikers see vapor near sheepfolds in Eryri. It looks like steam rising from Earth’s depths. Actually, the vapor comes from deep holes. These holes go down 120 meters. People…