Chwarel Ddu stenbrud

Source: Ordnance Survey

Copyright: Public domain

Description

Chwarel Ddu stenbrud var det tidligste skiferbrud i Lledr-dalen. Det var i drift før 1810 og fortsatte med sporadisk drift indtil slutningen af 1920'erne. Det ligger ca. 0,5 miles vest for Dolwyddelan, lige under Dolwyddelan Slot.

Det menes, at bruddet åbnede mellem 1800 og 1805. I 1810 var bruddet succesfuldt nok til, at Gwydir-godset, der ejede jorden, som bruddet lå på, konstruerede en vognvej fra bruddet til Holyhead Road ved Conwy. Dette udgør nu en del af A470. På trods af denne tidlige succes drev bruddet kun i korte perioder i de følgende årtier. I flere år i slutningen af 1850'erne producerede det betydelige mængder skifer, op til 700 tons om året. På dette tidspunkt blev der brugt en stationær dampmaskine til at transportere klipper op fra det åbne hul. I 1888 blev det endnu en gang lukket.

Source

Source: Wikipedia.org

Copyright: Creative Commons 3.0

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Source: Ordnance Survey

Copyright: Public domain

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Source: Ordnance Survey

Copyright: Public domain

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