Allt-fawr is a

mountain A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited Summit (topography), summit area, and ...

Snowdonia Snowdonia or Eryri (), is a mountainous region in northwestern Wales and a national park of in area. It was the first to be designated of the three national parks in Wales, in 1951. Name and extent It was a commonly held belief that the nam ...

North Wales , area_land_km2 = 6,172 , postal_code_type = Postcode , postal_code = LL, CH, SY , image_map1 = Wales North Wales locator map.svg , map_caption1 = Six principal areas of Wales common ...

and forms part of the

Moelwynion The Moelwynion (a Welsh language, Welsh plural, sometimes Anglicisation, anglicised to Moelwyns) are a group of mountains in central Snowdonia. They extend from the north-east of Porthmadog to Moel Siabod, the highest of the group. The name deriv ...

group. It is on the internal border of

Snowdonia National Park Snowdonia or Eryri (), is a mountainous region in northwestern Wales and a national park of in area. It was the first to be designated of the three national parks in Wales, in 1951. Name and extent It was a commonly held belief that the nam ...

, and overlooks the town of

Blaenau Ffestiniog Blaenau Ffestiniog is a town in Gwynedd, Wales. Once a slate mining centre in historic Merionethshire, it now relies much on tourists, drawn for instance to the Ffestiniog Railway and Llechwedd Slate Caverns. It reached a population of 12,00 ...

, with its numerous slate quarries, as well as Llyn Ystradau and

Ffestiniog Power Station The Ffestiniog Power Station () is a 360 megawatts pumped-storage hydroelectricity scheme near Ffestiniog, in Gwynedd, north-west Wales. The power station at the lower reservoir has four water turbines, which can generate 360 MW of electricity wi ...

Tanygrisiau Tanygrisiau is a village and area within Blaenau Ffestiniog in the upper end of the Vale of Ffestiniog in the county of Gwynedd, north-west Wales (). It can be found along the southern side of the Moelwyn mountain range and dates to around 1750 ...

.Nuttall, John & Anne (1999). The Mountains of England & Wales - Volume 1: Wales (2nd edition ed.). Milnthorpe, Cumbria: Cicerone. . 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. Between 1974 and 1997, the

Gloddfa Ganol Gloddfa Ganol (also known as the Gloddfa Ganol Mountain Center) was a museum dedicated to the Welsh slate industry and narrow-gauge railways, situated in the Oakeley slate quarry in Blaenau Ffestiniog. It opened in 1974 and closed in 1998 follo ...

tourist attraction operated within the Oakeley Quarry on the south slope of the mountain.

References

External links

www.geograph.co.uk : photos of Allt-fawr and surrounding area
Marilyns of Wales Hewitts of Wales Nuttalls Mountains and hills of Gwynedd Ffestiniog {{Gwynedd-geo-stub