
Welsh Slate Museum

Welsh Slate Museum

The Welsh Slate Museum at Llanberis is situated in the original Gilfach Ddu workshop buildings of the Dinorwig Slate Company.

Quarrymen
The Assheton-Smith family from Cheshire owned the company and in partnership with the Penrhyn family. became a major part of the Welsh slate trade (about 25 percent by the turn of the 19th Century). At its zenith during the 1870s. the mine in Llanberis employed 3.500 men and remained an integral part of Welsh industrial life until its unexpected closure in 1969



blasting notice


Slate mining has been an integral part of Welsh communities. especially in the
north. for generations.

picking the piece of slate to be cut
Visitors are able to watch
demonstrations of slate splitting by skilled craftsmen.

splitting the slate

the larger roofing slate sizes

trimming to size

showing pictorial slate etchings
At the Llanberis Welsh Slate Museum. nestled in the valley below Mount Snowdon. the history of the industry since the 19th century is brought to life with workshops. a foundry. forges and water powered machinery. The museum houses the largest working waterwheel in the UK.



The Waterwheel


from the movie showing its operation

used to power many operations in the shop

using belts from the overhead drive shaft

the iron foundry in the shop

wood saw mill operations

overhead crane in the yard to remove cargo from the rail cars

large steam driven rail mounted crane

shovel for use in the mines
The Slate Railroad

narrow gauge engine

in the yard

mine rail cars

yard switching engine

mine hopper cars


mine cars loaded with slate slabs

the narrow gauge train used to haul visitors

the adjacent slate mine
Return to Wales Elderhostel page