Arenig Fawr
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
- 854 m · 2,802 ft
- Prominence
- 480 m
- Grid reference
- SH 82707 36951
- Coordinates
- 52.91712, -3.74594
- County / area
- Gwynedd
- OS Landranger
- 124 125
- OS Explorer
- OL18E
- Summit feature
- trig point
- Key col
- SH665522 (374 m)
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 52.917, -3.746. Plan your finish with the daylight safety planner.
Summit weather live
Loading forecast for the summit (854 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
- Record revised
- 23-Oct-23
- Drop measured from
- SH665522 · 374 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 Arenig Fawr group
2 other listed summits sit in the same prominence group, with Arenig Fawr as the independent hill at its head.
| Summit | Height | Drop |
|---|---|---|
| Arenig Fawr South Top | 837 m | 25 m |
| Arenig Fawr South Ridge Top | 714 m | 21 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 Top | 837 m | 0.3 km |
| Arenig Fawr South Ridge Top | 714 m | 1 km |
| Moel Llyfnant | 751 m | 2.6 km |
| Arenig Fach | 688.8 m | 4.7 km |
| Gallt y Daren | 619.4 m | 5.4 km |
| Foel Boeth | 615.4 m | 5.5 km |