Llechwedd Slate Caverns
Blaenau Ffestiniog, Gwynedd
Llechwedd was one of the great slate mines that roofed the world in Victorian times. Its Deep Mine tour takes visitors down Britain's steepest passenger railway into huge caverns, where miners worked by candlelight.
Read the full story, see it on the map, get directions and find what else is nearby in the free Hidden Britain Atlas map.
- When
- From 1846
- Where
- 53.0040, -3.9340
- Group
- Caves & grottoes
Visiting
Open daily for tours.

The Ledger of Lost Britain
The Romans arrived in AD 43. For most people that is where the history of Britain begins. But by the time the legions landed, people had already been living on these islands for thousands of years. They had hunted, farmed, mined flint, dragged stones across the country, raised a hill by hand, and buried their dead in great tombs. They left no written words. What they left was the ground itself. Every place in this book can be visited, or has been dug up, or is in a museum.
Nearby mysteries
- CwmorthinLost village · Near Blaenau Ffestiniog, Gwynedd · 2 miles away
- Manod QuarrySecret site · Near Blaenau Ffestiniog, Gwynedd · 2 miles away
- Tomen y MurRoman Britain · Near Trawsfynydd, Gwynedd · 4 miles away
- The Gwiber of PenmachnoDragon or monster · Penmachno, Conwy · 6 miles away
- Dinas EmrysLegend · Beddgelert, Snowdonia · 7 miles away
- Llyn LlydawLegend · Snowdon, Gwynedd · 7 miles away