Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
O.S. map of Caernarvonshire
Ordnance Survey Map Edition of 1920. Caernarvonshire Sheet XVI N.E and Sheet XVII N.W. Llanberis. Scale, Six inches to one statute mile or 880 feet to one inch = 1/10560
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.