Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Llanberis (Dinorwic) Slate Quarry, plan
Plan of Llanberis (Dinorwic) Slate Quarry, scale 1:100. Surveyed by Plowman Craven & Associates, July 1976. sheet 5 of 7. Survey Job No. 24694
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.