Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Bonvilles Court Area, Plan
Plan: Including Moreton Colliery and Bonville's Court Area, rock seam. 6":1m. Not dated.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.
Amgueddfa Cymru
Plan: Including Moreton Colliery and Bonville's Court Area, rock seam. 6":1m. Not dated.