Moel Eilio
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
- 726 m · 2,382 ft
- Prominence
- 259 m
- Grid reference
- SH 55581 57718
- Coordinates
- 53.09705, -4.15839
- County / area
- Gwynedd
- Region
- Snowdonia
- OS Landranger
- 115
- OS Explorer
- OL17W 254
- Summit feature
- windshelter
- Key col
- SH572558 (467 m)
About Moel Eilio
Moel Eilio stands about three miles north-west of Snowdon and carries two subsidiary tops, Foel Gron and Foel Goch. Its slopes are relatively flat and grassy, which helps snow accumulate in quantity during winter; the average annual temperature on the mountain is around 6 C.
Together with Foel Gron, Foel Goch and Moel Cynghorion, the hill forms a curved ridge running generally south-west towards Snowdon, giving a less frequented line onto that mountain. A common ascent begins at Llanberis by way of Bwlch y Groes and the north ridge. The small lake of Llyn Dwythwch lies below the summit.
Background written from facts in the Wikipedia article on Moel Eilio (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 53.097, -4.158. Plan your finish with the daylight safety planner.
Summit weather live
Loading forecast for the summit (726 m)…
Forecast adjusted to summit altitude. Weather data from MET Norway (CC BY 4.0).
Long-distance paths past this hill
One waymarked long-distance route runs 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 |
|---|---|---|
| Snowdonia Slate Trail | 135 km | 2.1 km |
Route lines © OpenStreetMap contributors (ODbL); distance from the summit computed by OpenFell.
The Moel Eilio group
One other listed summit sits in the same prominence group, with Moel Eilio as the independent hill at its head.
| Summit | Height | Drop |
|---|---|---|
| Foel Gron | 629 m | 31 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 |
|---|---|---|
| Foel Gron | 629 m | 1 km |
| Moel Cynghorion | 674 m | 3.3 km |
| Mynydd Mawr | 698 m | 3.4 km |
| Llechog | 720 m | 5.1 km |
| Y Garn | 633 m | 5.1 km |
| Mynydd Drws-y-coed | 695 m | 5.9 km |