These quarries on the side of Elidir Fawr were once the focus of large industrial operations employing many men. Though a lot of fascinating industrial debris remains, there are some great mountain views over to Snowdon and Moel y Cynghorion.
The vast quarry workings are obvious when driving between Llanberis and the Pass - the entire hillside on the other side of Llyn Peris has been eviscerated. Access either from below (Slate Museum car park for Vivian Quarry and Rainbow areas) or along a good track from Dinorwig village.
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Mountain Project's determination of some of the classic, most popular, highest rated routes for Llanberis Slate Quarries:
Featured Route For Llanberis Slate Quarries
Cracking Up 5.10d International : United Kingdom : ... : Gideon Quarry
The crux is low down where the crack is thin. Easier middle section then a trickier finish. Originally graded E3 6b, now E2 5c. The grade may be only Indian Creek 5.9 if you are strong with thin fingers!...[more] Browse More Classics in International