Arenig Fach is a mountain in southern Snowdonia, north Wales. It is a peak in the Arenig range and lies to the north of its parent peak Arenig Fawr. It lies close to

Llyn Celyn Llyn Celyn () is a reservoir constructed between 1960 and 1965 in the valley of the River Tryweryn in Gwynedd, Wales. It measures roughly long by wide, and has a maximum depth of . It has the capacity to hold of water. It was originally ...

alongside the

A4212 List of A roads in Great Britain, A roads in List of A roads zones in Great Britain, zone 4 in Great Britain starting north of the A4 road (Great Britain), A4 and south/west of the A5 road (Great Britain), A5 (roads beginning with 4). __TOC__ ...

between Trawsfynydd and

Bala Bala may refer to: Places India *Bala, India, a village in Allahabad, India * Bala, Ahor, a village in the Jalore district of Rajasthan * Bala, Raebareli, a village in Uttar Pradesh, India Romania * Bala, Mehedinți, a commune in Mehedinţi ...

. Carnedd y Filiast and

Foel Goch (Arenigs) Foel Goch is a mountain in north-east Wales, and forms part of the Arenig mountain range. It is the only member of the Arenig group that lies outside of the Snowdonia National Park.Nuttall, John & Anne (1999). The Mountains of England & Wales - V ...

is to the east, while Moel Llyfnant, Gallt y Daren and Arenig Fawr are to the south. The summit itself is known as Carnedd Bachgen, named after the ancient cairn, ''Carnedd y Bachgen'' (which lies just north-east of the summit), and is the highest point at the north end of a wide plateau. There is a trig point and a substantial shelter cairn. The mountain rises from the Migneint moorland and looks like a bulky heathery "lump" from most directions. However, its north-eastern face has steep cliffs with a small corrie lake, Llyn Arenig Fach, at their bottom. The last glacier occupation of this corrie is thought to have happened during the

Loch Lomond Stadial The Younger Dryas (c. 12,900 to 11,700 years BP) was a return to glacial conditions which temporarily reversed the gradual climatic warming after the Last Glacial Maximum (LGM, c. 27,000 to 20,000 years BP). The Younger Dryas was the last stage ...

.Loch Lomond Stadial glaciers in the Aran and Arenig Mountains, North Wales, Great Britain. Philip D. Hughes. Geological Journal, Volume 37 Issue 1, Pages 9 - 15. 2001.

References

Marilyns of Wales Hewitts of Wales Nuttalls Mountains and hills of Snowdonia Mountains and hills of Gwynedd Llanycil {{Gwynedd-geo-stub