NPRNTitleType Of SiteRelationNPRN85073TitleCwmbyrgwm Colliery: ChimneyType Of Siten/aRelationConsists ofNPRN85074TitleCwmbyrgwm Colliery: ShaftType Of Siten/aRelationConsists ofNPRN85075TitleCwmbyrgwm Colliery: Water BalanceType Of Siten/aRelationConsists of