NPRNTitleType Of SiteRelationNPRN33889TitlePowder House, Poole's Llywernog Mine, near PonterwydType Of Siten/aRelationConsists ofNPRN301519TitleBog Mine, PonterwydType Of Siten/aRelationAssociated withNPRN33888TitlePowell's Llywernog Mine, PonterwydType Of Siten/aRelationAssociated withNPRN419766TitleOre Crushing House, Llywernog Lead MineType Of Siten/aRelationConsists ofNPRN301518TitlePonterwyd Lead Mine, PonterwydType Of Siten/aRelationAssociated withNPRN301520TitleClara Lead Mine, PonterwydType Of Siten/aRelationAssociated with
