| Arenig Fach | |
|---|---|
 The north-eastern face of Arenig Fach | |
| Highest point | |
| Elevation | 689 m (2,260 ft) |
| Prominence | 294 m (965 ft) |
| Parent peak | Arenig Fawr |
| Listing | Marilyn, Hewitt, Nuttall |
| Naming | |
| English translation | small high ground |
| Language of name | Welsh |
| Pronunciation | Welsh: [aˈrɛnɪɡ ˈvaːχ] |
| Geography | |
 | |
| Location | Gwynedd, Wales |
| Parent range | Snowdonia |
| OS grid | SH827370 |
| Topo map | OS Landranger 124 |
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 alongside the A4212 between Trawsfynydd and Bala. Carnedd y Filiast and Foel Goch (Arenigs) 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.[1] The last glacier occupation of this corrie is thought to have happened during the Loch Lomond Stadial.[2]
- ^ Nuttall, John & Anne (1999). The Mountains of England & Wales - Volume 1: Wales (2nd edition ed.). Milnthorpe, Cumbria: Cicerone. ISBN 1-85284-304-7.
- ^ 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.