NPRNTeitlMath O SaflePerthynasNPRN308670TeitlDeeside Slab Quarry;Deeside Slate QuarryMath O Saflen/aPerthynasAssociated withNPRN308669TeitlMoel Fferna Slate MineMath O Saflen/aPerthynasAssociated withNPRN309751TeitlNant y Pandy Mill, Deeside Slate QuarryMath O Saflen/aPerthynasAssociated with
