The site was the world’s greatest exporter of slate during the mid 19th century, becoming a key part of the social and economic fabric of North-West Wales. The slate mined from the area also had a significant impact on global architecture with its materials used on a vast range of buildings, from terraces to palaces all around the world.Welsh slate has been used in some of the most iconic buildings in the world such as the White House (USA), the Hôtel de Ville (Paris, France) and Sandhurst Royal Military College (UK). It can also be seen as other UNESCO World Heritage Sites such as Westminster Hall at the Palace of Westminster (UK), Melbourne Exhibition Hall (Australia) and Port Royal (Jamaica). Current uses for the slate landscape include downhill bike trails, the world’s longest and fastest zip line, food and drink produce (including cheese, wine, gin and ale), glamping, rally course, underground trampolines, a diving centre …and of course the production of slate!
Penrhyn Slate Quarry and Bethesda, and the Ogwen Valley to Port Penrhyn
Dinorwig Slate Quarry Mountain Landscape
Nantlle Valley Slate Quarry Landscape
Gorseddau and Prince of Wales Slate Quarries, Railways and Mill
Ffestiniog: its Slate Mines and Quarries, ‘city of slates’ and railway to Porthmadog
Bryneglwys Slate Quarry, Abergynolwyn village and the Talyllyn Railway
Aberllefenni Slate Quarry
If inscribed it would be the fourth UNESCO World Heritage Site in Wales, alongside the Blaenavon Industrial Landscape, the Castles and Town Walls of King Edward at Gwynedd and the Pontcysyllte Aqueduct.