Maenofferen Quarry
Gwynedd, United Kingdom · built 1800
Maenofferen quarry (also known as Maen Offeren quarry) is a major slate quarry in the town of Blaenau Ffestiniog, north Wales and one of the major users of the Ffestiniog Railway. It continues to produce crushed slate on a limited scale under the ownership of the nearby Llechwedd quarry.
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