Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Glynhebog Colliery, slide
Remains of buildings at Glynhebog Colliery.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.
Amgueddfa Cymru
Remains of buildings at Glynhebog Colliery.