Allt-fawr is a mountain in Snowdonia, North Wales and forms part of the Moelwynion group.

Allt-fawr
Allt Fawr from the Rhosydd quarry
Highest point
Elevation698 m (2,290 ft)
Prominence243 m (797 ft)
Parent peakMoelwyn Mawr
ListingMarilyn, Hewitt, Nuttall
Coordinates53°00′27″N 3°58′02″W / 53.00762°N 3.96726°W / 53.00762; -3.96726
Naming
English translationbig slope
Language of nameWelsh
PronunciationWelsh: [ˈaɬt ˈvau̯r]
Geography
Allt-fawr is located in Snowdonia
Allt-fawr
Allt-fawr
Parent rangeSnowdonia
OS gridSH681474
Topo mapOS Landranger 115
Listed summits of Allt-fawr
Name Grid ref Height Status
Cnicht 689 m (2,260 ft) Hewitt, Nuttall
Moel Druman 676 m (2,218 ft) Hewitt, Nuttall
Ysgafell Wen 672 m (2,205 ft) Hewitt, Nuttall
Ysgafell Wen North Top 669 m (2,195 ft) Hewitt, Nuttall
Moel Meirch 609 m (1,998 ft) sub Hewitt

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 Llyn Ystradau and Ffestiniog Power Station in Tanygrisiau.[1] On the northern slope of Allt-fawr is the Oakeley Quarry, the world's largest underground slate mine.[citation needed] 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.[2]

Between 1974 and 1997, the Gloddfa Ganol tourist attraction operated within the Oakeley Quarry on the south slope of the mountain.

References

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  1. ^ Nuttall, John & Anne (1999). The Mountains of England & Wales - Volume 1: Wales (2nd edition ed.). Milnthorpe, Cumbria: Cicerone. ISBN 1-85284-304-7.
  2. ^ J.G. Isherwood (1980). Candles to Caplamps: the Story of Gloddfa Ganol. Gloddfa Ganol.
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