Delabole Slate

The five quarries operating in Delabole merged to form the Old Delabole Slate Company [in 1841]. 1999: A management buyout, led by George Hamilton, returned the quarry to local ownership. 2005: The Hamilton family assumed full ownership, marking the first time since the 1830s that the quarry was under single-family control. [At its peak] Delabole employed over 1,000 workers and extracted an average of 120 tonnes of slate daily.

Delabole Slate's own words, unedited, quoted from delaboleslate.co.uk.