cwmorthin slate quarry digital watercolor

abandoned bach blaenau climb countryside cwmorthin derelict digital disused dramatic epic ffestiniog foreboding gwynedd holiday illustration industrial mawr mine moelwyn moelwynion mountain mountains mountainside national nature north outdoors painting panorama park quarry rhosydd rock ruin slate snowdonia stwlan tanygrisiau terrace tourism trek view vista wales walk walking watercolor watercolour welsh