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. It is a UK listed Nuttall.

Clive G

October 10, 2025

The highest point on the eastern arm of the Arans range. A direct ascent is a slog on steep grass, but an easier route is to follow the good path to Drysgol, and double back over much easier ground.

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Elevation 640 m

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Location: Mawddwy, Gwynedd, North Wales, Wales, United Kingdom

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