A really good mining book comes along from time to time. Mike Moore reviews a newly-published volume on an important slate quarry in North Wales. Aberllefeni Slate Quarry – A history of the last underground slate working in Wales Jon Knowles, A4, Hardback, 280 printed pages, self published. Hen Dy Gwydyr, Penrhydeudraeth, Gwynedd LL48 6RD , ISBN…
Book Review: Aberllefeni Slate Quarry, by Jon Knowles
