Glyder 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
- 1000.9 m · 3,284 ft
- Prominence
- 642 m
- Grid reference
- SH 64246 57956
- Coordinates
- 53.10147, -4.02916
- County / area
- Conwy/Gwynedd
- Region
- Snowdonia
- OS Landranger
- 115
- OS Explorer
- OL17W
- Summit feature
- rock tor
- Key col
- SH647556 (359 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
- —
- Daylight
- —
- Civil twilight ends
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Computed astronomically for 53.101, -4.029. Plan your finish with the daylight safety planner.
Summit weather live
Loading forecast for the summit (1001 m)…
Forecast adjusted to summit altitude. Weather data from MET Norway (CC BY 4.0).
Finding the summit
rock outcrop 40m SSW at SH 64230 57923 is 1.45m lower; all other rock features lower still.
The recorded summit point is rock tor. That distinction matters on broad or flat tops, where the obvious cairn is not always the true high point.
- Survey method
- Abney level/Leica 530
- Record revised
- 15-Nov-16
- Drop measured from
- SH647556 · 359 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.
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 | 2.4 km |
Route lines © OpenStreetMap contributors (ODbL); distance from the summit computed by OpenFell.
The Glyder Fawr group
4 other listed summits sit in the same prominence group, with Glyder Fawr as the independent hill at its head.
| Summit | Height | Drop |
|---|---|---|
| Glyder Fach | 994 m | 75 m |
| Castell y Gwynt | 972 m | 16 m |
| Y Foel Goch | 805 m | 63 m |
| Gallt yr Ogof | 763 m | 43 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 |
|---|---|---|
| Castell y Gwynt | 972 m | 1.2 km |
| Glyder Fach | 994.3 m | 1.4 km |
| Y Garn | 947 m | 2 km |
| Tryfan | 917.5 m | 2.6 km |
| Crib Goch | 923 m | 3.3 km |
| Foel-goch | 831 m | 3.5 km |