Penrhyn Slate Quarry and Bethesda, and the Ogwen valley to Port Penrhyn
Dinorwig Slate Quarry Mountain Landscape
Category:The Slate Landscape of Northwest Wales
Gorseddau and Prince of Wales Slate Quarries, Railways and Mill
Ffestiniog: its Slate Mines and Quarries, ‘city of slates’ and Railway to Porthmadog