page_title: Dinorwic quarry
section_title: Locomotives
hierarchical_section_title: Dinorwic quarry / Transport / Locomotives
caption_attribution_description: Quarry locomotive Louisa (Works No. 195/1877), Hunslet works photograph
context_page_description: The Dinorwic quarry is a large former slate quarry, now home to the Welsh National Slate Museum, located between the villages of Llanberis and Dinorwig in North Wales. It was the second largest slate quarry in Wales, indeed in the world, after the neighbouring Penrhyn quarry near Bethesda.
  It covered more than 700 acres consisting of two main quarry sections with 20 galleries in each and a number of ancillary workings. Extensive internal tramway systems connected the quarries using inclines to transport slate between galleries.
context_section_description: Early steam locomotives used by the quarry, and built by De Winton & Co. But from 1870 the quarry acquired most of its locomotives new from the Hunslet Engine Company of Leeds. These were purpose built, initially using a series of Hunslet general/unclassified designs, but after 1886 these fell into one of three purpose built classes:
  Alice
  Port: larger and designed primarily to work at Port Dinorwic, although Michael never did.
  Tram or Mills: worked on marshalling duties on the Padarn–Peris Tram Line, which linked the quarry mills to the Padarn Railway for transportation to Port Dinorwic.
caption: Louisa Hunslet works number 195 of 1877
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