The rock cannon of Gwynedd
By: Griff R. Jones.
Publisher: Griff R. Jones
Published: 2002
Place of publication: Blaenau Ffestiniog
Language: eng
Number of pages: 147
Subjects: Quarries and quarrying -- Wales -- Gwynedd -- History.; Explosives -- Wales -- Gwynedd -- History.; Industrial archaeology -- Wales -- Gwynedd.; Gwynedd (Wales) -- Social life and customs.