Qualla: Cambrian Mountains

Cambrian Mountains: Introduction

Sun, 24 May 2026 00:00:00 GMT

Photo credit Our retreat, CC BY-SA 4.0. On the eastern slope of a 2,467-foot hill in mid-Wales, two of Britain's great rivers start within a mile of each other and then spend the next 200 miles flowing to entirely different stretches of coast. Pen Pumlumon Fawr, anglicised as Plynlimon, gives birth to the Severn and the Wye from the same boggy upland. The Severn runs east to Bristol; the Wye drifts south to Chepstow. Stand on the summit and you stand on a hydrological hinge. This is the heart of the Cambrian Mountains, a range that mid-Wales has somehow kept obscure despite occupying its entire spine, and the locals like it that way.

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Image: Our retreat | CC BY-SA 4.0

Cambrian Mountains: The Desert That Made Wales

Sun, 24 May 2026 00:00:00 GMT

Photo credit Keith Lawson 11, CC BY-SA 4.0. The English call it the Desert of Wales, which says more about English expectations of wilderness than about anything botanical. It is not a desert. It is one of the wettest places in the British Isles, soaked by Atlantic fronts that hammer up the slopes of Plynlimon. What makes ...

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Image: Keith Lawson 11 | CC BY-SA 4.0

Cambrian Mountains: Source of the Severn

Sun, 24 May 2026 00:00:00 GMT

Photo credit Nexxo, Public domain. The Severn rises in a peat bog at about 2,000 feet on the eastern flank of Plynlimon and flows for 220 miles to the sea. It is the longest river in Great Britain. The Wye rises only a short distance away on the same hillside and flows 134 miles to the same estuary by a more south...

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Image: Nexxo | Public domain

Cambrian Mountains: The National Park That Wasn't

Sun, 24 May 2026 00:00:00 GMT

Photo credit Kentynet (talk), CC BY-SA 3.0. In 1972 the Countryside Commission published an order designating 467 square miles of the Cambrian Mountains as Wales's fourth national park. It would have stretched from Machynlleth in the north to Llandovery in the south, taking in Plynlimon and the whole sweep of Elenydd. The ...

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Image: Kentynet (talk) | CC BY-SA 3.0

Cambrian Mountains: Water and Wind

Sun, 24 May 2026 00:00:00 GMT

Photo credit User:Velela, Public domain. What the mountains do produce, in industrial quantities, is water and electricity. The Elan Valley reservoirs were carved out of the southern Cambrians starting in the 1890s to slake Birmingham's thirst, drowning whole farms and chapels in the process. Llyn Brianne, further south...

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Image: User:Velela | Public domain