Glyder Fach
2 classifications here — Trail 100 and Simm — belong to lists OpenFell holds only part of, so they have no list page. See how far the coverage goes.

- Height
- 994.3 m · 3,262 ft
- Prominence
- 74.5 m
- Grid reference
- SH 65646 58289
- Coordinates
- 53.10482, -4.00841
- County / area
- Conwy
- Region
- Snowdonia
- OS Landranger
- 115
- OS Explorer
- OL17W
- Summit feature
- large rock on huge pile of rocks
- Key col
- SH 6527 5815 (919.8 m)
About Glyder Fach
Glyder Fach is the second highest of the Glyderau and the sixth highest summit in Wales, at 994.3 m. Its ridge is approached from Tryfan and Bristly Ridge to the north, over Glyder Fawr from Pen-y-Pass to the south, or along the Glyder ridge running east towards Capel Curig, and it draws a steady stream of climbers.
Two rock features stand out. Y Gwyliwr, near the summit, is a large block that from the right angle looks precariously perched, and is much photographed. To the west lies Castell y Gwynt, a spiky outcrop. Sir Ifor Williams traced the name Glyder to the Welsh gludair, a heap of stones — apt for the ground here.
Background written from facts in the Wikipedia article on Glyder Fach (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
- —
- Daylight
- —
- Civil twilight ends
- —
Computed astronomically for 53.105, -4.008. Plan your finish with the daylight safety planner.
Summit weather live
Loading forecast for the summit (994 m)…
Forecast adjusted to summit altitude. Weather data from MET Norway (CC BY 4.0).
Finding the summit
The recorded summit point is large rock on huge pile of rocks. On broad or flat summits the obvious cairn is not always the true high point.
- Survey method
- obvious summit/Trimble GeoXH 6000
- Record revised
- 19-Oct-14
- Drop measured from
- SH 6527 5815 · 919.8 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
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 | 2.2 km |
Route lines © OpenStreetMap contributors (ODbL); distance from the summit computed by OpenFell.
Which hill this one belongs to
Glyder Fach is not counted as an independent hill in its own right. In prominence terms it belongs to Glyder Fawr (1,001 m) — the nearest Marilyn you can reach from this summit without first dropping below its key col, 920 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 | 0.3 km |
| Tryfan | 917.5 m | 1.3 km |
| Glyder Fawr | 1000.9 m | 1.4 km |
| Y Foel Goch | 805 m | 2.1 km |
| Y Garn | 947 m | 2.9 km |
| Gallt yr Ogof | 763 m | 2.9 km |