Wales
'Welsh Slate' dominated the north-west economy of Wales from 1850 onwards. Slate was exploited in dozens of quarries, such as in the smaller Rhos, on a flank of the Moel Siabod mountain in Snowdonia.
Ynys Y Pandy slate quarry
This old slate factory in Wales has been unemployed for a century and a half. Slate was only produced for 15 years, a commercial failure in 1850.
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