| Pen yr Allt Uchaf | |
|---|---|
 Aran Fawddwy from Pen yr Allt Uchaf | |
| Highest point | |
| Elevation | 620 m (2,030 ft) |
| Prominence | 49 m (161 ft) |
| Parent peak | Aran Fawddwy |
| Listing | Hewitt, Nuttall |
| Naming | |
| English translation | top of the highest slope |
| Language of name | Welsh |
| Geography | |
 | |
| Location | Gwynedd, Wales |
| Parent range | Snowdonia |
| OS grid | SH 86644 19322 |
| Topo map | OS Landranger 124 |
Pen yr Allt Uchaf is a subsidiary summit of Aran Fawddwy in the south of the Snowdonia National Park in Gwynedd, Wales. The summit is the highest point on a ridge branching off to the west of Aran Fawddwy's south ridge.
The summit is marked by a small cairn, and offers bird-eyes views of Cwm Cywarch. Close views of the steep south faces of Glasgwm, Gwaun y Llwyni and Aran Fawddwy are observed.[1]
- ^ Nuttall, John & Anne (1999). The Mountains of England & Wales - Volume 1: Wales (2nd ed.). Milnthorpe: Cicerone. ISBN 1-85284-304-7.