It is on the internal border of Snowdonia National Park, and overlooks the town of Blaenau Ffestiniog, with its numerous slate quarries, as well as the Tanygrisiau reservoir and power station. On the northern slope of Allt-fawr is the Oakeley Quarry, the world's largest underground slate mine. On the southern slope is the large Cwmorthin Quarry. These two mines are joined underneath the summit of Allt-fawr and the extensive chambering and adits are visible on the surface of the mountain where underground workings have collapsed.
Source: Wikipedia.org
Copyright: Creative Commons 3.0
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Gwynedd, United Kingdom
Discover the most beautiful and popular trails in the area, carefully bundled into appropriate selections.
Source: David Medcalf
Copyright: Creative Commons 2.0
Discover the most beautiful and popular attractions in the area, carefully bundled in appropriate selections.
Source: David Medcalf
Copyright: Creative Commons 2.0
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Ffestiniog
