rhosydd slate quarry, moelwyns

rhosydd quarry moelwyn mountains blue sky disused disuse unused abandonded abandonment derelict dilapidated neglect neglected ruin ruins ruined old rundown ramshackle history historic historical slate quarrying mining waste tips industry industrial snowdonia national park gwynedd north wales wall stone stones stony rock rocks rocky building buildings structure structures hiking destination tourism popular adventure outside leisure hike active landscape outstanding beauty eryri parc cenedlaethol moelwyns stand site former quarry