NPRNTeitlMath O SaflePerthynasNPRN309654TeitlBrynbella MoundMath O Saflen/aPerthynasAssociated withNPRN306868TeitlWhitford Dyke (Offa's Dyke)Math O Saflen/aPerthynasConsists ofNPRN306866TeitlOffa's Dyke; Clawdd Offa (Main Entry)Math O Saflen/aPerthynasPart of
