Moelwyn Mawr
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
- 770 m · 2,526 ft
- Prominence
- 385 m
- Grid reference
- SH 65825 44864
- Coordinates
- 52.98425, -4.00014
- County / area
- Gwynedd
- Region
- Snowdonia
- OS Landranger
- 124
- OS Explorer
- OL18W
- Summit feature
- ground next to trig point
- Key col
- SH699485 (385 m)
About Moelwyn Mawr
Moelwyn Mawr is part of the Moelwynion, in southern Eryri. Its summit looks out over the Vale of Ffestiniog, with views in every direction.
At 770 metres it is a Marilyn, Hewitt, Nuttall, HuMP and Simm.
Background written from facts in the Wikipedia article on Moelwyn Mawr (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
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- Sunset
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- Daylight
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- Civil twilight ends
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Computed astronomically for 52.984, -4.000. Plan your finish with the daylight safety planner.
Summit weather live
Loading forecast for the summit (770 m)…
Forecast adjusted to summit altitude. Weather data from MET Norway (CC BY 4.0).
Long-distance paths past this hill
2 waymarked long-distance routes run within 2.5 km of the summit — useful if you are linking this hill into a longer walk, or want a made path for the approach.
| Route | Total length | From summit |
|---|---|---|
| Cambrian Way | 483 km | over the top |
| Snowdonia Slate Trail | 135 km | 0.7 km |
Route lines © OpenStreetMap contributors (ODbL); distance from the summit computed by OpenFell.
The Moelwyn Mawr group
3 other listed summits sit in the same prominence group, with Moelwyn Mawr as the independent hill at its head.
| Summit | Height | Drop |
|---|---|---|
| Moelwyn Bach | 712 m | 127 m |
| Craigysgafn | 690 m | 27 m |
| Moel-yr-hydd | 648 m | 82 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 |
|---|---|---|
| Craigysgafn | 689.9 m | 0.6 km |
| Moelwyn Bach | 712 m | 1.1 km |
| Moel-yr-hydd | 648 m | 1.5 km |
| Cnicht | 690.9 m | 2.2 km |
| Cnicht North Top | 690.2 m | 2.2 km |
| Moel Druman | 676 m | 3.1 km |