NPRNTitleType Of SiteRelationNPRN416215TitleUphaulage Incline to Floor 6, Diffwys Slate QuarryType Of Siten/aRelationAssociated withNPRN415671TitleMill, Floor 6, Diffwys Slate QuarryType Of Siten/aRelationAssociated withNPRN85487TitleDiffwys Casson Slate QuarryType Of Siten/aRelationPart of
