Situated in the Victorian Gilfach Ddu workshops.

Current Access Status

Shut for renovation in 2025* but there are a series of free tours of Amgueddfa Lechi Cymru’s Collection Centre being held which will show how the collection is documented and stored during the ongoing work. The collections centre also houses items not normally on display. Tours must be pre-booked and full details are available via:
https://museum.wales/slate/whatson/12758/Next-Steps-Tours-Collection-Centre-Tours/

As at March 2026 the current estimate of re-opening is 2029

1870s Workshops built
1969 Dinorwic Quarry closed down
1972 Museum opened

Llanberis, Caernarfon LL55 4TY
03001112333
slate@museumwales.ac.uk
Normal hours:
Winter 10am-4pm
Summer 10am-5pm