Wales · Eryri National Park

Carnedd Llewelyn

HewittNuttallCurrent County/UA TopTrail 100MarilynHuMPSimmFurth

5 classifications here — Current County/UA Top, Trail 100, Marilyn, HuMP and Simm — belong to lists OpenFell holds only part of, so they have no list page. See how far the coverage goes.

Carnedd Llewelyn, 1064 m, Conwy/Gwynedd
Carnedd Llewelyn, 1064 m, Conwy/Gwynedd. Photo by User:Stemonitis, CC BY-SA 2.5 · Wikimedia Commons
Height
1064 m · 3,491 ft
Grid reference
SH 68364 64375
Coordinates
53.16017, -3.97033
County / area
Conwy/Gwynedd
Region
Snowdonia
OS Landranger
115
OS Explorer
OL17E OL17W
Summit feature
cairn
Key col
SH675604 (314 m)

About Carnedd Llewelyn

Carnedd Llewelyn, sometimes written Carnedd Llywelyn, is the high point of the Carneddau massif in north-west Snowdonia at 1,064 m. It sits on the Gwynedd–Conwy boundary, and by relative height it ranks second in Wales and 49th in the British Isles.

Background written from facts in the Wikipedia article on Carnedd Llewelyn (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 53.160, -3.970. Plan your finish with the daylight safety planner.

Summit weather live

Loading forecast for the summit (1064 m)…

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

Finding the summit

Surveyor's note

shelter 25m SW of cairn (SH 68376 64350) is 0.5m lower; ground at SH 68293 64476 and tors at SH 68233 64495 and SH 68194 64466 are all several metres lower.

The recorded summit point is cairn. That distinction matters on broad or flat tops, where the obvious cairn is not always the true high point.

Survey method
Abney level
Record revised
30-Jun-08
Drop measured from
SH675604 · 314 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 Carnedd Llewelyn group

16 other listed summits sit in the same prominence group, with Carnedd Llewelyn as the independent hill at its head.

Listed summits in the Carnedd Llewelyn prominence group
SummitHeightDrop
Carnedd Dafydd 1,044 m 114 m
Pen yr Ole Wen 978 m 45 m
Foel Grach 975 m 42 m
Yr Elen 962 m 54 m
Foel-fras 944 m 63 m
Garnedd Uchaf 925 m 33 m
Llwytmor 849 m 73 m
Pen yr Helgi Du 833 m 85 m
Bera Bach 807 m 18 m
Foel Meirch 799 m 17 m
Bera Mawr 794 m 30 m
Drum 771 m 48 m

Twelve highest shown, of 16 in the group.

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
Yr Elen 962 m 1.2 km
Foel Grach 975.4 m 1.6 km
Pen yr Helgi Du 832.6 m 1.9 km
Carnedd Dafydd 1044 m 2.5 km
Garnedd Uchaf 925 m 2.6 km
Foel Meirch 798.7 m 2.6 km