Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Llanberis (Dinorwic) Slate Quarry, plan
Llanberis [Dinorwic] Slate Quarry Museum sheet 7 of 7. Date of survey July 1976. Surveyed by Plowman Craven & Associates on behalf of Central Survey, DCED. Survey Job No. 24694. Scale 1:100 Drawn PCA, Checked FJT.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.