Pumlumon Fawr · Plynlimon

About Pumlumon Fawr

Pumlumon Fawr, or Plynlimon, is the highest point of the Cambrian Mountains and of Mid Wales, and the high point of Ceredigion. It is a massif rather than a single hill, dominating the country around it, and its summit Pen Pumlumon Fawr reaches 752 m above ordnance datum.

Other tops in the group include Pen Pumlumon Arwystli, Y Garn, Pen Pumlumon Llygad-bychan and Pumlumon Fach, with Bryn yr Wyn, 'hill of the lambs', a former Dewey among the foothills. Three rivers rise here: the Severn, Britain's longest, along with the Wye and the Rheidol. Folklore places a sleeping giant within the mountain.

Background written from facts in the Wikipedia article on Plynlimon (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 52.467, -3.783. Plan your finish with the daylight safety planner.

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 lines © OpenStreetMap contributors (ODbL); distance from the summit computed by OpenFell.

The Pumlumon Fawr group

4 other listed summits sit in the same prominence group, with Pumlumon Fawr as the independent hill at its head.

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