Moel Llyfnant
3 classifications here — 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
- 751 m · 2,464 ft
- Prominence
- 210 m
- Grid reference
- SH 80831 35187
- Coordinates
- 52.90085, -3.77318
- County / area
- Gwynedd
- OS Landranger
- 124 125
- OS Explorer
- OL18E OL23E
- Summit feature
- cairn on rocky outcrop
- Key col
- SH816354 (541 m)
About Moel Llyfnant
Moel Llyfnant belongs to the Arenig range in the southern part of Eryri, lying west of Arenig Fawr. Rocky outcrops break the summit area, and the small cairn marking the top sits on one of them.
Its one notable subsidiary is the twin-peaked Gallt y Daren at the end of the west ridge. The outlook takes in Arenig Fawr, with Rhobell Fawr and Dduallt to the south and Gallt y Daren and Foel Boeth to the west.
Background written from facts in the Wikipedia article on Moel Llyfnant (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
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- Daylight
- —
- Civil twilight ends
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Computed astronomically for 52.901, -3.773. Plan your finish with the daylight safety planner.
Summit weather live
Loading forecast for the summit (751 m)…
Forecast adjusted to summit altitude. Weather data from MET Norway (CC BY 4.0).
Finding the summit
The recorded summit point is cairn on rocky outcrop. On broad or flat summits the obvious cairn is not always the true high point.
- Survey method
- obvious summit
- Record revised
- 23-Oct-23
- Drop measured from
- SH816354 · 541 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 Moel Llyfnant group
2 other listed summits sit in the same prominence group, with Moel Llyfnant as the independent hill at its head.
| Summit | Height | Drop |
|---|---|---|
| Gallt y Daren | 619 m | 113 m |
| Foel Boeth | 615 m | 17 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 |
|---|---|---|
| Arenig Fawr South Ridge Top | 714 m | 2.1 km |
| Arenig Fawr South Top | 837 m | 2.4 km |
| Arenig Fawr | 854 m | 2.6 km |
| Gallt y Daren | 619.4 m | 3 km |
| Foel Boeth | 615.4 m | 3 km |
| Arenig Fach | 688.8 m | 6.5 km |