Carnedd Llechwedd-llyfn · Llechwedd-llyfn

About Carnedd Llechwedd-llyfn

Carnedd Llechwedd-llyfn is a subsidiary summit of Carnedd y Filiast in the Arenig range, on the Snowdonia National Park boundary in Llandderfel, Gwynedd; its northern slopes fall within Ysbyty Ifan in Conwy. It rises straight from the shore of Llyn Celyn and lies in the Migneint moorland.

A small cairn beside a fence marks the boggy summit. The views over northern Snowdonia are extensive, taking in Arenig Fach, Arenig Fawr and Waun Garnedd y Filiast.

Background written from facts in the Wikipedia article on Carnedd Llechwedd-llyfn (CC BY-SA 4.0). Heights, prominence and grid references come from the Database of British & Irish Hills, not from Wikipedia.

Access rights here

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 52.985, -3.703. Plan your finish with the daylight safety planner.

Finding the summit

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

Record revised

23-Feb-25

Drop measured from

SH 8600 4493 · 618.6 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.

Which hill this one belongs to

Carnedd Llechwedd-llyfn is not counted as an independent hill in its own right. In prominence terms it belongs to Carnedd y Filiast (669 m) — the nearest Marilyn you can reach from this summit without first dropping below its key col, 619 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