Aran Fawddwy
4 classifications here — Trail 100, Marilyn, HuMP and Simm — belong to lists OpenFell holds only part of, so they have no list page. See how far the coverage goes.

- Height
- 905.6 m · 2,971 ft
- Prominence
- 672.8 m
- Grid reference
- SH 86272 22387
- Coordinates
- 52.78702, -3.68785
- County / area
- Gwynedd
- Region
- Bala to Welshpool
- OS Landranger
- 124 125
- OS Explorer
- OL23E
- Summit feature
- trig point
- Key col
- SH 8505 2680 (232.8 m)
About Aran Fawddwy
Aran Fawddwy is the highest peak of the Aran range in southern Eryri and the county top of historic Merionethshire. It is the only Welsh summit outside northern Snowdonia to exceed 900 m, and nothing in the United Kingdom south of northern Snowdonia is higher.
Creiglyn Dyfi, a small lake on the eastern slopes, is the source of the River Dyfi. The ridge also carries the sister peak Aran Benllyn at 885 m, with Erw y Ddafad-ddu between the two. Dinas Mawddwy lies to the south, Llanymawddwy to the southeast, Rhydymain to the west and Llanuwchllyn to the north on the shore of Llyn Tegid; Bala and Dolgellau are the nearest larger towns.
Background written from facts in the Wikipedia article on Aran Fawddwy (CC BY-SA 4.0). Heights, prominence and grid references come from the Database of British & Irish Hills, not from Wikipedia.
Access rights here
Conditional Right to roam: Right to roam only on mapped CRoW open access land.
Permission needed Wild camping: Permission needed everywhere.
General position for Wales — local byelaws, seasonal restrictions and closures can override it. Full details: access rights in Wales · check another location.
Daylight at this summit today
- Sunrise
- —
- Sunset
- —
- Daylight
- —
- Civil twilight ends
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Computed astronomically for 52.787, -3.688. Plan your finish with the daylight safety planner.
Summit weather live
Loading forecast for the summit (906 m)…
Forecast adjusted to summit altitude. Weather data from MET Norway (CC BY 4.0).
Finding the summit
The recorded summit point is trig point. On broad or flat summits the obvious cairn is not always the true high point.
- Survey method
- obvious summit/Leica RX1250
- Record revised
- 03-Jun-24
- Drop measured from
- SH 8505 2680 · 232.8 m
Survey notes are field observations recorded in the Database of British & Irish Hills (v18.3, CC BY 4.0) by the hill-surveying community.
The Aran Fawddwy group
7 other listed summits sit in the same prominence group, with Aran Fawddwy as the independent hill at its head.
| Summit | Height | Drop |
|---|---|---|
| Aran Benllyn | 885 m | 50 m |
| Erw y Ddafad-ddu | 872 m | 39 m |
| Foel Hafod-fynydd | 689 m | 88 m |
| Gwaun y Llwyni | 686 m | 43 m |
| Gwaun Lydan | 632 m | 18 m |
| Pen yr Allt Uchaf | 630 m | 60 m |
| Waun Camddwr | 622 m | 16 m |
Grouping is by prominence alone: a summit belongs to the nearest higher Marilyn it connects to without a deeper intervening col. Over a large massif that can gather hills no one would walk in a single day, and which few would describe as parts of the same mountain — it is a measure of independence, not a suggested route.
Nearest listed peaks
| Peak | Height | Distance |
|---|---|---|
| Erw y Ddafad-ddu | 872 m | 1 km |
| Foel Hafod-fynydd | 689 m | 1.5 km |
| Aran Benllyn | 885 m | 1.9 km |
| Gwaun y Llwyni | 685.5 m | 2 km |
| Gwaun Lydan | 632 m | 2.1 km |
| Waun Camddwr | 621.7 m | 2.4 km |