Cilgwyn quarry
[1][2] King Edward I of England was reputed to have stayed in a house roofed by Cilgwyn slates during his conquest of Wales.Muskett fled the country in 1842, leaving behind debts of £10,000 (equivalent to £1,071,932 in 2016); he died in exile a year later.[1] In the early 2000s, the quarry was used as a waste dump by the local council, but landfill activity ceased in January 2009.A mile-long tramway ran from the mills round a horseshoe curve to a waste tip on the north side of Mynydd y Cilgwyn.[11] The quarry ceased to send slate via the Welsh Highland Railway in 1935 when a new road was constructed down to Talysarn.
GwyneddNantlleCarnarvonshireQuarryslate quarryNantlle ValleyNorth WalesEdward I of Englandhis conquest of Walesslate quarries in the Nantlle Valley areaCaernarfonGeorge Alfred MuskettSt AlbansopencastNantlle RailwayinclinesTalysarn UchafBryngwynWelsh Highland RailwayBagnallHunsletManning WardlePenrhyn Quarry RailwayFfestiniog RailwayNarrow Gauge Railway MuseumRuston & HornsbyNational Slate MuseumWelsh slate quarriesBlaenau FfestiniogCroesorCwm PenmachnoBlaen y CwmBwlch y SlatersConglogCwmorthinCwt y BugailDiphwys CassonFron-Boeth and Pant-MawrGraig DduLlechweddMaenofferenMoelwynNyth-y-GigfranOakeleyPenmachnoRhiwbachRhosyddVotty & BowyddWrysganDinas MawddwyAberangellCae AbattyCwmllecoediogGartheiniogHendredduMaesygamfaMinllynDulas ValleyAbercwmeiddawAbercorrisAberllefenniBraichgochCambergiCymerauGaewernLlwyngwernRatgoedBethesdaPantdreiniogPenrhynLlanberisDinorwicGlyrhonwyVivianCedrynChwarel DduCwm EigiauPrince LlewellynRhiw-goch (Conwy)Ty'n-y-brynAlexandraDorotheaPen-yr-OrseddLlangollenCambrianDeeside and MoelffernaArthogLlangolmanDandderwen quarryGilfach quarryBellstoneBryn EglwysCwm EbolDolgochFrongoch (Aberdyfi)GlogueRosebush