Qualla: Pen-yr-Orsedd Quarry

Pen-yr-Orsedd Quarry: Introduction

Sun, 24 May 2026 00:00:00 GMT

Drive up the Nantlle Valley toward Snowdon, look to the north side, and you will see a mountain that has been turned inside out. Pen-yr-Orsedd quarry rises in stepped grey terraces above the village of Nantlle, the rock removed in layers across the better part of two centuries. Production began in 1816 and ended in 1979. When Pen-yr-Orsedd closed, it was the last working slate quarry in the Nantlle Valley and one of the last anywhere in North Wales -- the final chapter of an industry that had roofed half the cities of Victorian Britain.

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Pen-yr-Orsedd Quarry: William Turner and the Penmaenmawr Investors

Sun, 24 May 2026 00:00:00 GMT

Pen-yr-Orsedd opened in 1816 under William Turner, who already owned the much larger Dorothea quarry next door and a third operation called Diphwys Casson at Blaenau Ffestiniog. Turner's quarrying empire stretched across the slate districts of North Wales. In 1854 he sold Pen-yr-...

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Pen-yr-Orsedd Quarry: The Last Quarry Standing

Sun, 24 May 2026 00:00:00 GMT

The Welsh slate industry's long decline began in the early twentieth century. Slate roofs gave way to tiles, then to asphalt, then to industrial roofing systems. The First World War interrupted production; the interwar depression hit demand hard; the Second World War redirected l...

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Pen-yr-Orsedd Quarry: Rich Morris and the Locomotive Collection

Sun, 24 May 2026 00:00:00 GMT

In 1963 a railway enthusiast called Rich Morris began collecting narrow-gauge industrial locomotives -- the small engines that had once shunted slate, granite and china clay across British industrial sites. By the mid-1970s his collection had outgrown his home in Longfield, Kent,...

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Pen-yr-Orsedd Quarry: What Remains

Sun, 24 May 2026 00:00:00 GMT

The Pen-yr-Orsedd workings cover hundreds of acres on the northern slopes of the Nantlle Valley. The quarry pit is staircased -- cut in great horizontal terraces called galleries, each a working level, joined by inclines down which the slate trams ran. The mill buildings, the eng...

Read more: Pen-yr-Orsedd Quarry on Qualla