Wales · Eryri National Park

Esgeiriau Gwynion · Foel Rhudd

HewittNuttallMarilynHuMPSimm

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.

Esgeiriau Gwynion, 670 m, Gwynedd
Esgeiriau Gwynion, 670 m, Gwynedd. Photo by Bill Rowley, CC BY-SA 2.0 · Wikimedia Commons
Height
669.9 m · 2,198 ft
Grid reference
SH 88929 23621
Coordinates
52.79866, -3.64889
County / area
Gwynedd
OS Landranger
124 125
OS Explorer
OL23E
Summit feature
no feature
Key col
SH 8846 2298 (499.8 m)

About Esgeiriau Gwynion

The Welsh name Esgeiriau Gwynion translates as 'white shanks'. It is the smallest of the three Marilyns of the Aran range, the others being Aran Fawddwy and Glasgwm.

Lying east of Aran Fawddwy across the gap of Bwlch Sirddyn, the hill curves round Cwm Cynllwyd towards the Berwyn range at Foel y Geifr. Its tops are boggy throughout, rising from a wild plateau of peat bog that a road crosses at Bwlch y Groes.

Background written from facts in the Wikipedia article on Esgeiriau Gwynion (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 52.799, -3.649. Plan your finish with the daylight safety planner.

Summit weather live

Loading forecast for the summit (670 m)…

Forecast adjusted to summit altitude. Weather data from MET Norway (CC BY 4.0).

Finding the summit

Surveyor's note

ground 30m NE, by small cairn, is 0.3m lower.

The recorded summit point is no feature. That distinction matters on broad or flat tops, where the obvious cairn is not always the true high point.

Record revised
23-Oct-23
Drop measured from
SH 8846 2298 · 499.8 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.

The Esgeiriau Gwynion group

6 other listed summits sit in the same prominence group, with Esgeiriau Gwynion as the independent hill at its head.

Listed summits in the Esgeiriau Gwynion prominence group
SummitHeightDrop
Foel Rhudd 659 m 19 m
Foel y Geifr 626 m 111 m
Moel y Cerrig Duon 625 m 79 m
Llechwedd Du 613 m 34 m
Foel Goch 613 m 47 m
Trum y Gwragedd 611 m 24 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

PeakHeightDistance
Foel Rhudd 659 m 0.7 km
Llechwedd Du 613.4 m 1.3 km
Foel Hafod-fynydd 689 m 1.5 km
Aran Benllyn 885 m 2.3 km
Erw y Ddafad-ddu 872 m 2.5 km
Gwaun Lydan 632 m 2.6 km